Angle Measurements (NTI Assignment 9)

Front

What is an obtuse angle?

Back

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

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.

Front

What is the range of measurements for acute angles?

Back

Acute angles measure between 0 and 90 degrees.

Front

What is the range of measurements for obtuse angles?

Back

Obtuse angles measure between 90 and 180 degrees.

Front

What is the sum of angles in a triangle?

Back

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

Front

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

Back

It is a right triangle.

Front

If two angles in a triangle are acute, what can be said about the third angle?

Back

The third angle must be obtuse.

Front

What is the measurement of a right angle in degrees?

Back

90 degrees.