Mathematics
Grade 10
45 min
Exterior Angle Theorem
Tutorial Preview
1
Find the exterior angle from two interior angles.
2
Find an interior angle from the exterior angle.
3
Solve for x when angles are expressions.
Sample Practice Questions
Easy
A triangle has two remote interior angles of 40° and 60°. What is the measure of the exterior angle?
0.80°
1.90°
2.100°
3.110°
Easy
The two opposite interior angles of a triangle are 30° and 50°. Find the exterior angle.
0.70°
1.80°
2.90°
3.100°
Easy
An exterior angle of a triangle is 120°. One remote interior angle is 70°. What is the other remote interior angle?
0.50°
1.60°
2.70°
3.80°
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