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Study sets matching "geometry circle"

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Study sets matching "geometry circle"

11 terms
Circle Geometry
Two Tangent Theorem
Chord-Chord Angle
Secant-Tangent Angle OR Tangent-Tangen…
Area of a sector
If 2 tangent segments are drawn to a circle from an external…
The measure of a chord-chord angle equals half the sum of the…
The measure of an angle whose vertex is OUTSIDE a circle is h…
Two Tangent Theorem
If 2 tangent segments are drawn to a circle from an external…
Chord-Chord Angle
The measure of a chord-chord angle equals half the sum of the…
17 terms
Circle Geometry
Radius
Diameter
Chord
circumference
Any straight line from the center of a circle to its circumfe…
the distance measured from one point on a circle to another g…
Any straight line linking two points on a circle`s circumfere…
The total length of the outside edge (perimeter) of a circle.
Radius
Any straight line from the center of a circle to its circumfe…
Diameter
the distance measured from one point on a circle to another g…
11 terms
Circle Geometry
Two Tangent Theorem
Chord-Chord Angle
Secant-Tangent Angle OR Tangent-Tangen…
Area of a sector
If 2 tangent segments are drawn to a circle from an external…
The measure of a chord-chord angle equals half the sum of the…
The measure of an angle whose vertex is OUTSIDE a circle is h…
Two Tangent Theorem
If 2 tangent segments are drawn to a circle from an external…
Chord-Chord Angle
The measure of a chord-chord angle equals half the sum of the…
13 terms
Geometry Circle Vocabulary
circle
center
radius
chord
set of all points in a plane that are a given distance from a…
the point in the middle of the circle - equal distance from t…
segment with one end point on the circle and one end point at…
segment that joins two points on the circle ... (segment with e…
circle
set of all points in a plane that are a given distance from a…
center
the point in the middle of the circle - equal distance from t…
8 terms
circle geometry
radius
diameter
circumference
area of circle
A straight line from the center to the circumference of a cir…
A straight line passing from side to side through the center…
The distance around a circle
A=πr²
radius
A straight line from the center to the circumference of a cir…
diameter
A straight line passing from side to side through the center…
16 terms
Circles - Geometry
Circle
Center
Radius
Diameter
the set of all points in a plane that are equidistant from a…
the given point that all points are equidistant from
distance from the center to a point on the circle; segment wh…
distance across the circle, through the center (twice the rad…
Circle
the set of all points in a plane that are equidistant from a…
Center
the given point that all points are equidistant from
18 terms
ACT Circle Geometry Proofs
opposite angles in a cyclic ... quadrilat…
the angle between a tangent and a chor…
equal arcs subtend equal angles at the…
the products of intercepts of intersec…
opposite angles in a cyclic ... quadrilat…
the angle between a tangent and a chor…
7 terms
Geometry- Circles
Chord
Tangent
Inscribed Angle
Central Angle
A line segment in the circle that intersects two sides of the…
A line that intersects the circle at one point.
An angle whose vertex is on the circle and is half the arc it…
An angle whose vertex is at the center of the circle and is e…
Chord
A line segment in the circle that intersects two sides of the…
Tangent
A line that intersects the circle at one point.
11 terms
Geometry- Circles
Circle
Center of a circle
Radius
Chord
A line forming a closed loop, every point on which is a fixed…
A point inside the circle. All points on the circle are equid…
the distance from the center of a circle to the edge
a line that connects one point on a circle to another point o…
Circle
A line forming a closed loop, every point on which is a fixed…
Center of a circle
A point inside the circle. All points on the circle are equid…
15 terms
Circle Geometry
right triangle
isocelese triangle
equilateral triangle
scalene triangle
one 90 degree angle
two equal sides, two base angles are equal
sides are all the same, All angles are 60 degrees
no equal sides
right triangle
one 90 degree angle
isocelese triangle
two equal sides, two base angles are equal
15 terms
Circle Geometry
If OP is perpendicular to AB then AP =…
If AB = CD then x = y (equal chords eq…
AOB = 2 x ACB (angle at centre is twic…
ACB = ADB (angles in same segment)
If OP is perpendicular to AB then AP =…
If AB = CD then x = y (equal chords eq…
20 terms
Geometry Circles
center
central angle
chord
circle
center
central angle
15 terms
circle geometry
tangent
point of tangency
tangent-radius property
perpendicular to chord property #1
line that intersects a circle at only one point
point where the tangent intersects the circle
a tangent that is perpendicular to the radius at the point of…
where, from the centre of a circle to a chord bisects the cho…
tangent
line that intersects a circle at only one point
point of tangency
point where the tangent intersects the circle
9 terms
Circle geometry
A tangent and a radius
2 radii form
The perpendicular bisector of a chord
The angle at the centre of a circle
meet at 90
an isoscele triangle
passes through the centre of the circle
is twice the angle at the circumference
A tangent and a radius
meet at 90
2 radii form
an isoscele triangle
16 terms
Geometry Circle Terms
Center
Chord
Secant
Point of Tangency
given point from which all points on a circle are the same di…
A segment whose endpoints are 2 points... on a circle.
A line that intersects a circle in two points
Point where a Tangent segment touches a circle
Center
given point from which all points on a circle are the same di…
Chord
A segment whose endpoints are 2 points... on a circle.
9 terms
Circle Geometry
A tangent and a radius always meet at…
Two radii form an isosceles triangle
The perpendicular bisector of a chord…
The angle at the centre of a circle is…
A tangent and a radius always meet at…
Two radii form an isosceles triangle
21 terms
Circle Geometry
Radius
Diameter
Tangent
Point of Tangency
The distance or line segment from the centre of a circle to a…
The distance across a circle, measured through its centre; th…
A line that intersects a circle at only one point.
The point where a tangent intersects (touches) the circle.
Radius
The distance or line segment from the centre of a circle to a…
Diameter
The distance across a circle, measured through its centre; th…
21 terms
Geometry CIRCLE
circle
center
radius
chord
A round shape
In the middle
A straight line from the center to the circumference of a cir…
A segment whose endpoints lie on a circle
circle
A round shape
center
In the middle
5 terms
Circle geometry
Angles in the same segment are equal
Angles in a semi-circle are 90 degrees
opposite angles in a cyclic quad add u…
Tangents from a point outside the circ…
Angles in the same segment are equal
Angles in a semi-circle are 90 degrees
14 terms
Geometry - Circles
Chord
Secant
Tangent
Point of Tangency
segment whose endpoints are points on a circle
line that intersects a circle in two points
is a line in the plane of the circle that intersects the circ…
the point where a tangent line and circle intersect
Chord
segment whose endpoints are points on a circle
Secant
line that intersects a circle in two points
10 terms
Geometry: Circle
circle
radius
diameter
circumference
半径
直径
周长
circle
radius
半径
Geometry circles
Chord
Secant
Tangent
Point of tangency
A segment whose endpoints lie on a circle.
A line that intersects a circle at 2 points
A line in the same plane as a circle that intersects it at ex…
The point where the tangent and a circle intersect
Chord
A segment whose endpoints lie on a circle.
Secant
A line that intersects a circle at 2 points
16 terms
Circle geometry
Sector
Tangent
Chord
An arc
A wedge shaped area, cut right from the center
A straight line that touches the outside of a circle
A line across the inside of the circle
Part of the circumference of the circle
Sector
A wedge shaped area, cut right from the center
Tangent
A straight line that touches the outside of a circle
11 terms
Circle Geometry
Two Tangent Theorem
Chord-Chord Angle
Secant-Tangent Angle OR Tangent-Tangen…
Area of a sector
If 2 tangent segments are drawn to a circle from an external…
The measure of a chord-chord angle equals half the sum of the…
The measure of an angle whose vertex is OUTSIDE a circle is h…
Two Tangent Theorem
If 2 tangent segments are drawn to a circle from an external…
Chord-Chord Angle
The measure of a chord-chord angle equals half the sum of the…
11 terms
Circle Vocabulary (Geometry)
Circle
Center
Radius
Diameter
the set of all points in a plane, equidistant from a given po…
the given point, what the circle is named by
the distance from the center of the circle to any point on th…
The distance across the circle passing through its center.
Circle
the set of all points in a plane, equidistant from a given po…
Center
the given point, what the circle is named by
26 terms
Geometry circles
Circle
Center
Radius
Chord
Set of all points in a plain that are equidistant from a give…
is equal distance from all edges of a circle
A straight line from the center to the circumference of a cir…
a segment whose endpoints are on a circle
Circle
Set of all points in a plain that are equidistant from a give…
Center
is equal distance from all edges of a circle
Circle Geometry
Circle
Secant
Tangent
Point of tangency
A locus of points equidistant from a fixed point
A line that intersects a circle at exactly 2 points
A line that intersects a circle at exactly 1 point
The point at which the tangent line intersects the circle
Circle
A locus of points equidistant from a fixed point
Secant
A line that intersects a circle at exactly 2 points
28 terms
Geometry: Circles
Circle
Radius
Chord
Diameter
The set of all points that are equidistant from a point calle…
A segment whose endpoints are the center and any point on the…
A segment whose endpoints are on a circle.
A chord that contains the center of the circle.
Circle
The set of all points that are equidistant from a point calle…
Radius
A segment whose endpoints are the center and any point on the…
9 terms
Geometry: Circles
Circle
Radius
Chord
Diameter
Set of all points in a plane that are at a fixed distance fro…
A segment that joins the center of the circle to a point on t…
A line segment that joins two points of a circle
A chord that contains the center of the circle
Circle
Set of all points in a plane that are at a fixed distance fro…
Radius
A segment that joins the center of the circle to a point on t…
16 terms
Geometry: Circles
Interior/Exterior of a Circle
Chord
Secant
Concentric Circles
The interior of a circle is the set of all points inside the…
A chord is a segment whose endpoints lie on a circle
A secant is a line that intersects a circle at two points
Concentric Circles are coplanar circles with the same center
Interior/Exterior of a Circle
The interior of a circle is the set of all points inside the…
Chord
A chord is a segment whose endpoints lie on a circle
10 terms
geometry - circles
chord
tangent line
central angle
concentric circles
chord
tangent line
16 terms
Geometry: Circles
Interior/Exterior of a Circle
Chord
Secant
Concentric Circles
The interior of a circle is the set of all points inside the…
A chord is a segment whose endpoints lie on a circle
A secant is a line that intersects a circle at two points
Concentric Circles are coplanar circles with the same center
Interior/Exterior of a Circle
The interior of a circle is the set of all points inside the…
Chord
A chord is a segment whose endpoints lie on a circle
15 terms
Analytic Geometry Circle Vocabulary
Diameter
Radius
Tangent Line
Secant
Diameter
Radius
21 terms
Math 9 Circle Geometry Vocab
Tangent-Radius Property
Angle-Sum Property
Pythagorean Theorem
Centre Point
A tangent is perpendicular (forms right angle) to the radius…
The sum of the 3 angles in a triangle is always 180°
a² + b² = c²
The point at the perfect centre of the circle.
Tangent-Radius Property
A tangent is perpendicular (forms right angle) to the radius…
Angle-Sum Property
The sum of the 3 angles in a triangle is always 180°
12 terms
Circle Formulas in Geometry
Find the measure of Central Angle
Find the measure of an Inscribed Angle.
Find the measure of an Angle INSIDE th…
Find the measure of an Angle OUTSIDE t…
It is equal to its Intercepted arc.
It is equal to 1/2 of its Intercepted arc.
It is equal to 1/2 of the sum of the arcs.
It is equal to 1/2 DIFFERENCE of the arcs
Find the measure of Central Angle
It is equal to its Intercepted arc.
Find the measure of an Inscribed Angle.
It is equal to 1/2 of its Intercepted arc.
19 terms
Geometry-Circles
center
Name & symbol
radius
diameter
middle point in a circle
A point, A is center
A line segment with one endpoint at the center of a circle an…
The distance across a circle through its center
center
middle point in a circle
Name & symbol
A point, A is center
16 terms
Circle Geometry parts of a circle
Radius
Diameter
Chord
circumference
Any straight line from the center of a circle to its circumfe…
the distance measured from one point on a circle to another g…
Any straight line linking two points on a circle`s circumfere…
The total length of the outside edge (perimeter) of a circle.
Radius
Any straight line from the center of a circle to its circumfe…
Diameter
the distance measured from one point on a circle to another g…
Geometry- Circles
Equation of a Circle
Equation of a Circle
- Center of a circle
Radius
(x-h)²+(y-k)²=r², (h, k) is the center, r is the radius.
(x-h)²+(y-k)²=r². ... *h and k are opposite signs, when identify…
(h , k)
The distance from the center of a circle to any point on the…
Equation of a Circle
(x-h)²+(y-k)²=r², (h, k) is the center, r is the radius.
Equation of a Circle
(x-h)²+(y-k)²=r². ... *h and k are opposite signs, when identify…
25 terms
geometry - circles
circle
radius
diameter
chord
a set of all points that are equidistant from the center of t…
a segment who's endpoints are the center of the circle and an…
a chord that passes through the center of the circle
a segment who's endpoints are on the circle
circle
a set of all points that are equidistant from the center of t…
radius
a segment who's endpoints are the center of the circle and an…
11 terms
Geometry Circles
Circle
Radius
Chord
Diameter
The set of all points in a plane that are the same distance f…
The distance from the center of a circle to any point on the…
a straight line connecting two points on a circle... can neve…
A chord that passes through the center of the circle
Circle
The set of all points in a plane that are the same distance f…
Radius
The distance from the center of a circle to any point on the…
14 terms
geometry circles
arc length formula
ab=cd
two tangents
tangent chord angle
intersecting chord rule
m<abc=1/2(mAC-mAC)
m<ABC=1/2mAB
arc length formula
ab=cd
intersecting chord rule
9 terms
Geometry - Circles
Area of a Circle
Circumference of a Circle
Diameter
Radius
A line that goes from one side of a circle, through the cente…
A line that goes from one side of a circle to the center.
Area of a Circle
Circumference of a Circle
24 terms
Geometry circle vocab
Circle
Arc
Minor Arc
Major Arc
the set of all points on a plane at a set distance from a giv…
two points on a circle and the continuous (unbroken) part of…
An arc whose length is less than half of the circle. Named wi…
An arc of a circle whose length is more than half of the circ…
Circle
the set of all points on a plane at a set distance from a giv…
Arc
two points on a circle and the continuous (unbroken) part of…
10 terms
Geometry/Circles
chord
circumference
diameter
radius
a line segment passing through a circle that has its endpoint…
the distance around a circle
a chord passing through the center of a circle
a line segment with one endpoint at the center of a circle an…
chord
a line segment passing through a circle that has its endpoint…
circumference
the distance around a circle
16 terms
Geometry Circles
arc
endpoints
minor arc
major arc
a curved line along the circumference of a circle
the points where an arc ends
an arc that takes up less than half a circle
an arc that takes up more than half of a circle, ( must be la…
arc
a curved line along the circumference of a circle
endpoints
the points where an arc ends
8 terms
Geometry: Circles
Central Angle
Inscribed Angle
Cyclic Quadrilateral
Tangent Chord Angle
Central Angle = Intercepted Arc
Inscribed Angle = 1/2 Intercepted Arc
Opposite angles in a cyclic quadrilateral are supplementary.
Tangent Chord Angle = 1/2 Intercepted Arc
Central Angle
Central Angle = Intercepted Arc
Inscribed Angle
Inscribed Angle = 1/2 Intercepted Arc
18 terms
Geometry Unit 10 Circle Formulas
Area of a Circle
Circumference
Diameter
Measure of a Central Angle
A = πr²
C = πd
d = 2r
Central ∠ = arc measure
Area of a Circle
A = πr²
Circumference
C = πd
14 terms
Circle Geometry
Circle
Center
Central Angle
Arc
...
...
...
...
Circle
...
Center
...
10 terms
Geometry: Circle
Polygon
Circumference
Circle
Radius
A shape with all sides and angles equal.
The distance around the edge of a circle.
A shape with all points the same distance from its centre.
The distance from the centre of a circle to any point of the…
Polygon
A shape with all sides and angles equal.
Circumference
The distance around the edge of a circle.
9 terms
Circles Geometry
Arc Length
Sector Area
Right-angle corollary
Arc-intercept corollary
measure of arc/360 x 2πr
measure of arc/360 x πr²
if an inscribed angle intercepts a semicircle, then the angle…
if two inscribed angles intercept the same arc, then they hav…
Arc Length
measure of arc/360 x 2πr
Sector Area
measure of arc/360 x πr²
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