1. Foundations

Angle Types — Quiz

Test your understanding of angle types with 5 practice questions.

Practice Questions

Question 1

Ray OB bisects ∠AOC. If m∠AOB = (2x + 10)° and m∠BOC = (4x − 20)°, what is m∠AOC?

Question 2

In convex quadrilateral ABCD, ∠A = 70°, ∠B = 110°, ∠C = 95°. What is ∠D?

Question 3

At point P, five angles sum to 360°. Four measures are 50°, 75°, 125°, and 85°. What is the fifth angle?

Question 4

If vertical angles measure (3x + 20)°, for which integer values of x is each vertical angle obtuse?

Question 5

Convert an obtuse angle of 120° into radians.