Unit 4 HW 2: Angles of Triangles

Front

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

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

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

Back

It is a right triangle.

Front

What is the measure of the third angle in a triangle if the other two angles are 45 degrees each?

Back

The third angle measures 90 degrees.

Front

What is an exterior angle of a triangle?

Back

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

Front

If angle A is 60 degrees and angle B is 50 degrees, what is angle C in triangle ABC?

Back

Angle C is 70 degrees.

Front

What is the relationship between the angles in a triangle?

Back

The angles in a triangle are related such that their sum is 180 degrees.

Front

How do you find a missing angle in a triangle?

Back

Subtract the sum of the known angles from 180 degrees.

Front

What is the measure of angle 7 if angle 1 is 40 degrees and angle 2 is 60 degrees?

Back

Angle 7 measures 80 degrees.

Front

What is the measure of angle 2 if angle 1 is 42 degrees and angle 3 is 96 degrees?

Back

Angle 2 measures 42 degrees.

Front

What is the measure of angle 1 if angle 2 is 85 degrees and angle 3 is 45 degrees?

Back

Angle 1 measures 50 degrees.