3 years ago

Help me this one out, pls?

Mathematics

1 answer:

Flura [38]3 years ago

4 0

Answer:

∠ACD= 109°

Step-by-step explanation:

∠A=38

180- ∠A= ∠B+C

180-38= 2∠B( ∠B=∠C) ( angles opposite to equal sides are equal)

142=2∠B

∠B=71

∠ACD=∠A+∠B ( exterior angle property)

∠ACD= 38+ 71= 109°

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