Question

Which of the following statements is true for ∠a and ∠b in the diagram?

A) m∠a = m∠b

B) m∠a + m∠b = 90°

C) m∠a + m∠b = 180°

D) m∠a – m∠b = 90°

Answer 1

A

Explanation:

If you look at the angles or use something to measure it you can tell that a and b are opposite sides that are parallel to each other. So they are equal.