Interior Angles of Triangles

Front

What is the sum of the interior angles of a triangle?

Back

180 Degrees

Front

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

Back

Right triangle

Front

What is the measure of the third angle if two angles of a triangle are 50° and 60°?

Back

70°

Front

In a triangle, if one angle measures 45° and another measures 45°, what is the measure of the third angle?

Back

90°

Front

What do you call a triangle with all angles measuring less than 90°?

Back

Acute triangle

Front

What do you call a triangle with one angle measuring more than 90°?

Back

Obtuse triangle

Front

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

Back

90°

Front

What is the relationship between the angles in a triangle?

Back

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

Front

If two angles of a triangle are 70° and 40°, what is the measure of the third angle?

Back

70°

Front

What is the measure of an angle in an equilateral triangle?

Back

60°