Question

problem 3 using congruent angles
got it? use the photo at the right. if (mangle abc = 49), what is (mangle def)?

1. (angle abc) has angle mark(s).
2. the other angle with the same number of marks is (angle).
3. underline the correct word to complete the sentence.

the measure of (angle abc) and the measure of the angle in exercise 18 are equal / unequal.

1. (mangle def=)

Explanation:

Step1: Identify congruent angles

Congruent angles have equal measures.

Step2: Given $\angle ABC$ and $\angle DEF$ are congruent

Since $m\angle ABC = 49$, then $m\angle DEF$ has same measure.

Answer:

$49$