Angle Sum

Front

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

Back

180 degrees

Front

If one angle of a triangle is 90 degrees, what type of triangle is it?

Back

Right Triangle

Front

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

Back

60 degrees

Front

In a right triangle, what is the relationship between the angles?

Back

One angle is 90 degrees, and the other two angles are complementary (sum to 90 degrees).

Front

How do you find the measure of a missing angle in a triangle?

Back

Subtract the sum of the known angles from 180 degrees.

Front

What is an isosceles triangle?

Back

A triangle with at least two equal sides and two equal angles.

Front

What is the formula for finding the third angle in a triangle?

Back

Third angle = 180 - (first angle + second angle).

Front

What type of triangle has one angle greater than 90 degrees?

Back

Obtuse Triangle

Front

What is the definition of complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What is the definition of supplementary angles?

Back

Two angles that add up to 180 degrees.