Angle Addition and Angle Bisector

Front

What is an angle that measures between 90 and 180 degrees called?

Back

Obtuse Angle

Front

What does the Angle Addition Postulate state?

Back

m∠ADB + m∠BDC = m∠ADC

Front

What is the measure of a right angle?

Back

90 degrees

Front

If angle JHG measures 161 degrees, what are the measures of angles GHK and KHJ?

Back

m∠GHK = 80.5 degrees, m∠KHJ = 80.5 degrees

Front

What is the definition of an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is the definition of a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is the relationship between complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What is the relationship between supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is an angle bisector?

Back

A ray that divides an angle into two equal parts.

Front

How do you find the measure of an angle if you know its complement?

Back

Subtract the measure of the angle from 90 degrees.