Triangles and Angles Test

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 the sum of the angles in a triangle?

Back

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

Front

If two angles of a triangle are 30 and 70 degrees, what is the measure of the third angle?

Back

The third angle measures 80 degrees.

Front

What type of angles can form a triangle?

Back

The angles must be positive and their sum must equal 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

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

Back

It is a right triangle.

Front

What is the measure of angle x if it is given as 129.7 degrees?

Back

Angle x measures 129.7 degrees.

Front

What is the value of 'x' if it is given as 20?

Back

The value of 'x' is 20.

Front

Can a triangle have two obtuse angles?

Back

No, a triangle cannot have two obtuse angles because the sum of the angles would exceed 180 degrees.