Segment and Angle Proofs

Front

What is the Segment Addition Postulate?

Back

If point B is between points A and C, then AB + BC = AC.

Front

Define complementary angles.

Back

Two angles are complementary if the sum of their measures is 90 degrees.

Front

What is the definition of a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What does the Transitive Property state?

Back

If a = b and b = c, then a = c.

Front

What is the definition of congruence in geometry?

Back

Two figures are congruent if they have the same shape and size.

Front

What is the definition of a midpoint?

Back

A midpoint is a point that divides a segment into two equal parts.

Front

What is the Angle Addition Postulate?

Back

If point B is in the interior of angle AOC, then m∠AOB + m∠BOC = m∠AOC.

Front

Provide an example of two complementary angles.

Back

Angle A = 60 degrees, Angle B = 30 degrees.

Front

What is the purpose of substitution in proofs?

Back

Substitution allows you to replace a variable or expression with its equivalent.

Front

What is the definition of a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.