Interior and Exterior Angles of Triangles

Front

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.

Back

180°

Front

Which of the following terms best describes Angle d?

Back

Exterior angle

Front

Find the measure of the missing angle if the other two angles are 60° and 70°.

Back

50°

Front

Find the measure of the indicated angle if it is supplementary to 144°.

Back

36°

Front

Which of the following angles are remote interior angles to angle d?

Back

Angle a and Angle b

Front

What is an interior angle of a triangle?

Back

An angle formed by two sides of a triangle that is inside the triangle.

Front

What is an exterior angle of a triangle?

Back

An angle formed by one side of a triangle and the extension of an adjacent side.

Front

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

Back

Right triangle

Front

What is the relationship between an exterior angle and the two remote interior angles?

Back

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

Front

If the angles of a triangle are 50°, 60°, and x°, what is the value of x?

Back

70°