Triangle Angles 3

Front

What is the sum of the angles in a triangle?

Back

180 Degrees

Front

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

Back

Right triangle

Front

What is the measure of the third angle if two angles in a triangle are 47° and 66°?

Back

67°

Front

What is an acute angle?

Back

An angle that measures less than 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

If one angle of a triangle is 39° and another is 47°, what is the measure of the third angle?

Back

94°

Front

What is the relationship between the angles in a triangle?

Back

The sum of the interior angles is always 180 degrees.

Front

If a triangle has angles measuring 30° and 60°, what is the measure of the third angle?

Back

90°

Front

What is the measure of an angle that is complementary to a 36° angle?

Back

54°