Triangle Congruency/Isos/Equil

Front

If two sides of a triangle are congruent, then the _________________ opposite those sides are congruent.

Back

angles

Front

Find x: If one angle is 40 degrees, what is the value of x?

Back

40 degrees

Front

What do the angles in an equilateral triangle measure?

Back

60°, 60°, 60°

Front

∆ISR ≅ ?

Back

∆TRS

Front

State the theorem you would use to determine that the two triangles are congruent: SAS, SSS, HL, AAS.

Back

HL

Front

What is the definition of congruent triangles?

Back

Triangles that are identical in shape and size, meaning all corresponding sides and angles are equal.

Front

What does the SSS theorem state?

Back

If three sides of one triangle are equal to three sides of another triangle, then the triangles are congruent.

Front

What does the SAS theorem state?

Back

If two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, then the triangles are congruent.

Front

What does the AAS theorem state?

Back

If two angles and a non-included side of one triangle are equal to two angles and the corresponding non-included side of another triangle, then the triangles are congruent.

Front

What is the definition of an isosceles triangle?

Back

A triangle with at least two sides of equal length.