Describe Angle Relationships in Triangles Test Prep

Front

What is the sum of the interior angles in a triangle?

Back

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

Front

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

Back

Supplementary angles.

Front

What do you call angles that are equal in measure?

Back

Congruent angles.

Front

What is the measure of each angle in an equilateral triangle?

Back

Each angle in an equilateral triangle measures 60 degrees.

Front

If two angles are complementary, what is the sum of their measures?

Back

The sum of their measures is 90 degrees.

Front

What is the relationship between the angles in a right triangle?

Back

In a right triangle, one angle measures 90 degrees, and the sum of the other two angles is 90 degrees.

Front

If angle A and angle B are supplementary, and angle A measures 75 degrees, what is the measure of angle B?

Back

Angle B measures 105 degrees.

Front

What is the term for an angle that measures more than 90 degrees but less than 180 degrees?

Back

Obtuse angle.

Front

What is the term for an angle that measures less than 90 degrees?

Back

Acute angle.

Front

If angle C is 45 degrees and angle D is 45 degrees, what type of triangle do they form together with a right angle?

Back

They form a right triangle.