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

If one angle of a triangle is 65 degrees and another is 55 degrees, what is the measure of the third angle?

Back

The third angle is 60 degrees (180 - 65 - 55 = 60).

Front

What do you call an angle that measures more than 90 degrees but less than 180 degrees?

Back

An obtuse angle.

Front

If a triangle has angles measuring 93 degrees and 29 degrees, what is the measure of the third angle?

Back

The third angle is 58 degrees (180 - 93 - 29 = 58).

Front

What is the measure of an angle that is supplementary to a 107-degree angle?

Back

The supplementary angle is 73 degrees (180 - 107 = 73).

Front

What type of triangle has all three angles measuring less than 90 degrees?

Back

An acute triangle.

Front

If two angles of a triangle are equal and each measures 65 degrees, what is the measure of the third angle?

Back

The third angle is 50 degrees (180 - 65 - 65 = 50).

Front

What is the measure of an angle that is complementary to a 29-degree angle?

Back

The complementary angle is 61 degrees (90 - 29 = 61).

Front

In a triangle, if one angle is 115 degrees, what can you say about the type of triangle?

Back

It is an obtuse triangle because it has one angle greater than 90 degrees.

Front

What is the relationship between the angles in a triangle?

Back

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