Triangles and Angles

Front

What is the supplement to 85°?

Back

95 degrees

Front

In a triangle, how many total degrees are there?

Back

180 degrees

Front

If 2 of the angles of a triangle are 30 and 70 degrees, what is the measure of the third angle?

Back

80 degrees

Front

What type of angle is greater than 90° but less than 180°?

Back

Obtuse angle

Front

What type of triangle has one angle that measures exactly 90°?

Back

Right triangle

Front

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

Back

180 degrees

Front

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

Back

Right isosceles triangle

Front

What is an acute angle?

Back

An angle that measures less than 90°.

Front

What is the definition of a triangle?

Back

A polygon with three edges and three vertices.

Front

What is the formula to find the measure of an exterior angle of a triangle?

Back

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