Question

If m∠A = m∠B and m∠A + m∠C = ∠D, then

m∠B + m∠C = ∠D.

Which property is shown?

reflexive property
substitution property
symmetric property
transitive property

Answer 1

Substitution property

Explanation:

Have a nice day!

Answer 2

Substitution Property

Explanation:

The change from the first equation to the final equation is m∠A has been replaced by m∠B. In other words, m∠B was substituted for m∠A.