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…
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…
Circle Geometry
Circle
Diameter
Radius
Area of a circle
Set of points that are a fixed distance from a given point ca…
The distance across a circle through its centre.
The distance from the centre of a circle to any point on the…
A=πr²
Circle
Set of points that are a fixed distance from a given point ca…
Diameter
The distance across a circle through its centre.
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…
17 terms
Geometry: Circles
Radius
Diameter
Chord
Secant
Distance from the center of a circle to a point on the circle.
A chord the goes through the center of a circle. (segment fro…
Segment from one side of the circle to the other. Doesn't nee…
A line going through a circle.
Radius
Distance from the center of a circle to a point on the circle.
Diameter
A chord the goes through the center of a circle. (segment fro…
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.
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
Geometry- Circles
Radius
Radii
Chord
Diameter
The distance from the center to the edge of a circle: It is h…
A plural of radius
a straight line that joins two points on a curve
a line running through the center of a circle from one side t…
Radius
The distance from the center to the edge of a circle: It is h…
Radii
A plural of radius
6 terms
Geometry circle
Circle
Radius
Diameter
Chord
A circle is the set of points in a plane that are a fixed dis…
A radius of a circle is a line segment drawn from the center…
A diameter of a circle is a chord that contains the center of…
A chord of a circle is a line segment whose endpoints are on…
Circle
A circle is the set of points in a plane that are a fixed dis…
Radius
A radius of a circle is a line segment drawn from the center…
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
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
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
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
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.
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…
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
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…
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
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
7 terms
Circle geometry
Chord
Sector
Arc
Circle theorem 1
Line across circle, separates into segments
Triangle (two radii)
Thing across the circumference of circle
- Angle at centre is 2 times angle at circumference subtended…
Chord
Line across circle, separates into segments
Sector
Triangle (two radii)
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…
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
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…
Circle geometry
Radius
Diameter
Center
Chord
1/2 of a diameter
a line that goes through the center (2 x r = d)
The middle of the circle.
A line that does NOT go through the center.
Radius
1/2 of a diameter
Diameter
a line that goes through the center (2 x r = d)
20 terms
Geometry Circles
center
central angle
chord
circle
center
central angle
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…
6 terms
Geometry Circle
Circle
Radius
Diameter
Standard Circle Equation Whose Center…
a set of points fhat are equidistant from the center
distance from the center tonthe circle
a line segment that goes through the center whose endpoints a…
x^2+y^2=r^2
Circle
a set of points fhat are equidistant from the center
Radius
distance from the center tonthe circle
Circle Geometry
Circle
Center
Central Angle
Arc
...
...
...
...
Circle
...
Center
...
Circle Geometry
Diameter
Radius
Chord
Arc
the distance across a circle, measured through its center; or…
the distance or line segment from the center of a circle to a…
a line segment that joins two points on a circle
A segment of the circumference of a circle.
Diameter
the distance across a circle, measured through its center; or…
Radius
the distance or line segment from the center of a circle to a…
24 terms
Circle geometry
Concentric circles
Equal circles have the same
Tangent
Circles that share the same centre
Radii
Touches the circle at one point
Concentric circles
Circles that share the same centre
Equal circles have the same
Radii
Geometry (circle)
Circle
Radius
Chord
Diameter
The set of all points in a plane that are given distance (rad…
A segment with one endpoint at the center and the other endpo…
A segment that has both endpoints on the (•)
A chord that contains the center of the (•) always the longes…
Circle
The set of all points in a plane that are given distance (rad…
Radius
A segment with one endpoint at the center and the other endpo…
10 terms
Geometry: Circle
circle
radius
diameter
circumference
半径
直径
周长
circle
radius
半径
20 terms
Circle geometry
Central <
Inscribed <
Special case inscribed
< Formed by tangent and a chord
<= arc
<=1/2 arc
< is rt
<=1/2 arc
Central <
<= arc
Inscribed <
<=1/2 arc
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.
6 terms
Circle Geometry
A line segment with both endpoints on…
An angle formed by 2 radii of a circle
An angle formed by two chords that sha…
a portion of the circumference
Chord
Central Angle
Inscribed Angle
Arc
A line segment with both endpoints on…
Chord
An angle formed by 2 radii of a circle
Central Angle
Circle Geometry
Chord
Secant
Tangent
Chord-Chord Theorem
A segment whose endpoints are on a circle
A segment/line that goes entirely through a circle
A segment/line that lies on/near a circle and is perpendicula…
m<x=.5(m arc AB + m arc CD)
Chord
A segment whose endpoints are on a circle
Secant
A segment/line that goes entirely through a circle
Circle geometry
Complementary angles
Supplementary Angles
Angles on a line
Vertically opposite angles
Add to 90
Add to 180
Add to 180
Equal
Complementary angles
Add to 90
Supplementary Angles
Add to 180
13 terms
Circle geometry
Tangent to
Circumference
Diameter
Radius
Just touches it
All the way around the circle
Has to go through center; two end points
Half of diameter
Tangent to
Just touches it
Circumference
All the way around the circle
13 terms
Circle geometry
Chord
Central angles
Inscribed angle
Arc
A line segment that joins 2 points on a circle.... It doesn't go…
These angles have their vertec at the center if the circle. T…
Angle formed by 2 chords which meet at the same endpoint
The circumfrence of a circle between the inscribed angles
Chord
A line segment that joins 2 points on a circle.... It doesn't go…
Central angles
These angles have their vertec at the center if the circle. T…
19 terms
Geometry: Circle
circle
interior
exterior
chord
all possible points in a plane equidistant from a given point…
set of all points inside of a circle
set of all points outside a circle
a line segement with end points on the circle
circle
all possible points in a plane equidistant from a given point…
interior
set of all points inside of a circle
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…
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
10 terms
Circle Geometry
Diameter
Radius
Chord
Tangent
A line segment that connects two points on the edge of the ci…
A line segment that connects the centre pt to the edge of the…
A line segment that connects two points on the edge of the ci…
A line that touches the circle at one point
Diameter
A line segment that connects two points on the edge of the ci…
Radius
A line segment that connects the centre pt to the edge of the…
37 terms
Circle Geometry
Acute
Obtuse
Right Angle
Reflex
Angle Less than 90°
Angle Greater than 90° and less than 180°
Angle that is 90°
Angle that is less than 180° and more than 360°
Acute
Angle Less than 90°
Obtuse
Angle Greater than 90° and less than 180°
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…
15 terms
Analytic Geometry Circle Vocabulary
Diameter
Radius
Tangent Line
Secant
Diameter
Radius
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.
15 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…
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