# Study sets matching "geometry triangle"

Study sets

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Triangle

Acute Triangle

Obtuse Triangle

Right Triangle

A three sided polygon

A triangle that contains only angles that are less than 90 deg…

A triangle with one angle that is greater than 90 degrees.

A triangle that has a 90 degree angle.

Triangle

A three sided polygon

Acute Triangle

A triangle that contains only angles that are less than 90 deg…

Triangle

Equilateral Triangle

Scalene Triangle

Isosceles Triangle

A Polygon with 3 sides. The point of intersection of 2 sides i…

A Triangle with 3 congruent sides.

A Triangle with 3 sides that have different lengths.

A Triangle with at least 2 congruent sides.

Triangle

A Polygon with 3 sides. The point of intersection of 2 sides i…

Equilateral Triangle

A Triangle with 3 congruent sides.

Midsegment

Point of Concurrency

Median

Centroid

A segment that connects the midpoints of two sides of a triang…

The point where three or more lines, segments, or rays interse…

a segment that connects the vertex of a triangle with the midp…

The point of concurrency for three medians.

Midsegment

A segment that connects the midpoints of two sides of a triang…

Point of Concurrency

The point where three or more lines, segments, or rays interse…

SSS

SAS

ASA

AAS

if 3 sides of one triangle are congruent to 3 sides of a secon…

if 2 sides with an angle in between them are congruent to 2 si…

If 2 angles with a side in between are congruent to 2 angles a…

If 2 angles and the 'non-in between' side of one triangle are…

SSS

if 3 sides of one triangle are congruent to 3 sides of a secon…

SAS

if 2 sides with an angle in between them are congruent to 2 si…

Side-Side-Side Congruence (SSS)

Side-Angle-Side Congruence (SAS)

Angle-Side-Angle Congruence (ASA)

Angle-Angle-Side Congruence (AAS)

If three sides of a triangle are congruent to three sides of a…

If two sides and the included angle of a triangle are congruen…

If two angles and the included side of a triangle are congruen…

If two angles and a non-included side of a triangle are congru…

Side-Side-Side Congruence (SSS)

If three sides of a triangle are congruent to three sides of a…

Side-Angle-Side Congruence (SAS)

If two sides and the included angle of a triangle are congruen…

two legs

b/c

Tangent

Trigonomentry

Trigonometry ratios are the ratios of __________ _________ of…

The sin B=

In a right triangle, the ratio of the side opposite / the side…

the branch of mathematics dealing with the relations of the si…

two legs

Trigonometry ratios are the ratios of __________ _________ of…

b/c

The sin B=

Midsegment

Point of Concurrency

Median

Centroid

A segment that connects the midpoints of two sides of a triang…

The point where three or more lines, segments, or rays interse…

A median is a segment that connects the vertex of a triangle w…

The point of concurrency for three medians.

Midsegment

A segment that connects the midpoints of two sides of a triang…

Point of Concurrency

The point where three or more lines, segments, or rays interse…

Exterior sum theorem

Triangle sum theorem

Transversal

Alternate interior angle

sum of the measures of exterior angles in a convex polygon is…

The sum of the measures of the angles of a triangle is 180.

a line that intersects two or more coplanar lines at different…

angles between 2 lines and on opposite sides of a transversal

Exterior sum theorem

sum of the measures of exterior angles in a convex polygon is…

Triangle sum theorem

The sum of the measures of the angles of a triangle is 180.

The proof that MNS ~= QNS is shown. Giv…

How can WXY be mapped to MNQ?... First, tr…

Two rigid transformations are used to m…

Which of these triangle pairs can be ma…

MS and QS

line segment WX

b. a rotation about point H

a.

The proof that MNS ~= QNS is shown. Giv…

MS and QS

How can WXY be mapped to MNQ?... First, tr…

line segment WX

Pythagorean Triple

arithmetic mean

geometric mean

trigonometric ratio

three positive integers that satisfy the Pythagorean Theorem

add the numbers and divide

multiply the numbers and take the root

the ratio of two sides in a right triangle

Pythagorean Triple

three positive integers that satisfy the Pythagorean Theorem

arithmetic mean

add the numbers and divide

Isosceles Triangle Theorem

Converse of the Isosceles Triangle Theo…

Converse of the Isosceles Triangle Theo…

Isosceles Triangle Theorem

If two sides of a triangle are congruent, then the angles oppo…

If two angles of a triangle are congruent, then the sides oppo…

Isosceles Triangle Theorem

If two sides of a triangle are congruent, then the angles oppo…

Converse of the Isosceles Triangle Theo…

If two angles of a triangle are congruent, then the sides oppo…

Scalene Triangle

Isosceles Triangle

Equilateral Triangle

Right Triangle

A triangle with no congruent sides

A triangle with 2 congruent sides

A triangle with all 3 sides congruent

A triangle with exactly one right angle(90)

Scalene Triangle

A triangle with no congruent sides

Isosceles Triangle

A triangle with 2 congruent sides

fake

real

real

fake

Is this a real or "fake" triangle? It has side lengths of 14 c…

Is this a real or "fake" triangle? It has side lengths of 5 cm…

Is this a real or "fake" triangle? It has side lengths of 13 c…

Is this a real or "fake" triangle? It has side lengths of 3 cm…

fake

Is this a real or "fake" triangle? It has side lengths of 14 c…

real

Is this a real or "fake" triangle? It has side lengths of 5 cm…

triangle

vertex

Angles of a triangle are labeled 3 ways:

The sum of the measures of the interior…

3 sided polygon

A common endpoint of two sides of a polygon or an angle.

Three capital letters that name the angle... A capital letter tha…

180 degrees

triangle

3 sided polygon

vertex

A common endpoint of two sides of a polygon or an angle.

Acute Triangle

Equiangular Triangle

Obtuse Triangle

Right Triangle

If all three of the angles of a triangle are acute angles, the…

If all three angles of an acute triangle are congruent, then t…

If one of the angles of a triangle is an obtuse angle, then th…

If one of the angles of a triangle is a right angle, then the…

Acute Triangle

If all three of the angles of a triangle are acute angles, the…

Equiangular Triangle

If all three angles of an acute triangle are congruent, then t…

Scalene Triangle

Isosceles Triangle

Equilateral Triangle

Right Triangle

A triangle with no congruent sides

A triangle with 2 congruent sides

A triangle with all 3 sides congruent

A triangle with exactly one right angle(90)

Scalene Triangle

A triangle with no congruent sides

Isosceles Triangle

A triangle with 2 congruent sides

Scalene Triangle

Isosceles Triangle

Equilateral Triangle

Right Triangle

A triangle with no congruent sides

A triangle with 2 congruent sides

A triangle with all 3 sides congruent

A triangle with exactly one right angle(90)

Scalene Triangle

A triangle with no congruent sides

Isosceles Triangle

A triangle with 2 congruent sides

Right Triangle

Pythagorean Theroem

Hypotenuse

Legs

One right angle

a squared + b squared = c squared... a^2 + b^2 = c^2

Longest leg across from rt. angle (c)

Two shorter sides of a rt. triangle (a & b)

Right Triangle

One right angle

Pythagorean Theroem

a squared + b squared = c squared... a^2 + b^2 = c^2

Circumcenter

Orthocenter

Altitude

Median of a Triangle

is the point of concurrency for the 3 perpendicular bisectors…

The point of intersection (concurrency of the 3 altitudes of a…

a segment drawn from any vertex of a triangle perpendicular to…

is a segment drawn from a vertex to the opposite sides midpoin…

Circumcenter

is the point of concurrency for the 3 perpendicular bisectors…

Orthocenter

The point of intersection (concurrency of the 3 altitudes of a…

Orthocenter

Isosceles triangle

Scalene triangle

Equilateral triangle

The intersection point of all three altitudes in a triangle.

A triangle with two equal sides and two equal angles.

A triangle with no equal sides and no equal angles.

A triangle with three equal sides and 3 equal angles.

Orthocenter

The intersection point of all three altitudes in a triangle.

Isosceles triangle

A triangle with two equal sides and two equal angles.

acute angle

adjacent side

Sine

Cosine

an angle that measures greater than 0° but less than 90°

In a right triangle, for each acute angle in the interior of t…

length of opposite side divided by length of hyptonuse

length of adjacent side divided by length of hypotenuse

acute angle

an angle that measures greater than 0° but less than 90°

adjacent side

In a right triangle, for each acute angle in the interior of t…

Right Triangle

Hypotenuse

Legs of a right triangle

Pythagorean Theorem

A triangle with a right angle.

The side opposite the right angle.

The sides that form the right angle

The sum of the squares of the legs of a right triangle is equa…

Right Triangle

A triangle with a right angle.

Hypotenuse

The side opposite the right angle.

Hypotenuse

Right triangle

Leg

short leg

The side opposite the right angle, also the longest side in a…

any triangle with a 90 degree angle

the sides that are not the hypotenuse

the shortest side of right triangle

Hypotenuse

The side opposite the right angle, also the longest side in a…

Right triangle

any triangle with a 90 degree angle