Ch. 6 Rev. pt. 2

Front

What is the sum of the measures of the exterior angles of a triangle?

Back

The sum of the measures of the exterior angles of a triangle is always 360 degrees.

Front

If two exterior angles of a triangle measure 263 degrees, what is the measure of the third exterior angle?

Back

The measure of the third exterior angle is 97 degrees.

Front

Define an exterior angle of a triangle.

Back

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

Front

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

Back

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

Front

If one exterior angle of a triangle is 120 degrees, what is the sum of the two opposite interior angles?

Back

The sum of the two opposite interior angles is 120 degrees.

Front

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

Back

The measure of an exterior angle can be found using the formula: Exterior Angle = Interior Angle 1 + Interior Angle 2.

Front

How do you calculate the measure of an interior angle if you know the exterior angle?

Back

You can calculate the measure of an interior angle by subtracting the exterior angle from 180 degrees.

Front

What is the measure of an interior angle if the exterior angle is 97 degrees?

Back

The measure of the interior angle is 83 degrees.

Front

Explain why the sum of the exterior angles of a triangle is always 360 degrees.

Back

This is because each exterior angle is formed by extending one side of the triangle, and as you move around the triangle, you complete a full circle, which is 360 degrees.

Front

What is the measure of an exterior angle if the two opposite interior angles are 45 degrees and 55 degrees?

Back

The measure of the exterior angle is 100 degrees.