Triangles/Angles

Front

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

Back

180 degrees

Front

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

Back

Right triangle

Front

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

Back

60 degrees

Front

What do you call a triangle with one angle greater than 90 degrees?

Back

Obtuse triangle

Front

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

Back

70 degrees

Front

In a triangle, if one angle measures 40 degrees and another measures 100 degrees, what is the measure of the third angle?

Back

40 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.

Front

What type of triangle has all sides of different lengths?

Back

Scalene triangle

Front

If two angles of a triangle are equal, what type of triangle is it?

Back

Isosceles triangle

Front

What is the exterior angle theorem?

Back

The exterior angle of a triangle is equal to the sum of the two opposite interior angles.