Geometry Semester Final

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

What do we call angles that add up to 180 degrees?

Back

Supplementary angles.

Front

What is the definition of congruent triangles?

Back

Congruent triangles are triangles that are identical in shape and size.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What does the acronym SAS stand for in triangle congruence?

Back

SAS stands for Side-Angle-Side, a postulate used to prove triangle congruence.

Front

What does the acronym SSS stand for in triangle congruence?

Back

SSS stands for Side-Side-Side, a postulate used to prove triangle congruence.

Front

What does the acronym ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, a postulate used to prove triangle congruence.

Front

What is the definition of a straight angle?

Back

A straight angle measures exactly 180 degrees.