Angle/Triangle Retest

Front

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

Back

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

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle with no congruent sides.

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

If angle A is 45 degrees, what is the measure of angle B if A and B are supplementary?

Back

Angle B is 135 degrees.

Front

Can a triangle with side lengths 28, 41, and 13 exist?

Back

No, a triangle with these side lengths cannot exist.

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle with at least two congruent sides.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle with all three sides congruent.

Front

If two angles are complementary and one angle measures 81 degrees, what is the measure of the other angle?

Back

The other angle measures 9 degrees.

Front

What is the definition of an angle?

Back

An angle is formed by two rays with a common endpoint called the vertex.