Triangles

Front

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

Back

180 degrees

Front

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

Back

Acute triangle

Front

What type of triangle has one angle that is exactly 90 degrees?

Back

Right triangle

Front

What type of triangle has one angle that is greater than 90 degrees?

Back

Obtuse triangle

Front

If a triangle has angles measuring 30°, 60°, and 90°, what type of triangle is it?

Back

Right triangle

Front

If a triangle has angles measuring 45°, 45°, and 90°, what type of triangle is it?

Back

Right triangle

Front

If a triangle has angles measuring 70°, 60°, and 50°, what type of triangle is it?

Back

Acute triangle

Front

If a triangle has angles measuring 100°, 40°, and 40°, what type of triangle is it?

Back

Obtuse triangle

Front

What is the measure of the missing angle in a triangle if the other two angles are 45° and 90°?

Back

45°

Front

What is the measure of the missing angle in a triangle if the other two angles are 60° and 60°?

Back

60°