Solving problems using angle relationships

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

An angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is the sum of angles in a triangle?

Back

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

Front

If two angles are complementary, what is their sum?

Back

The sum of complementary angles is 90 degrees.

Front

If two angles are supplementary, what is their sum?

Back

The sum of supplementary angles is 180 degrees.

Front

Solve for x: x + 30 = 90

Back

x = 60

Front

Solve for y: 2y + 10 = 90

Back

y = 40

Front

If angle A is 30 degrees, what is the measure of its complement?

Back

The complement of angle A is 60 degrees.