3 years ago

Can someone help me with this? Pls ty!

Mathematics

1 answer:

Sedbober [7]3 years ago

8 0

Answer:

ACD = 120°

Step-by-step explanation:

Exterior angle theorem.

3x = (x + 12) + (x + 28)

3x = 2x + 40

x = 40

ACD = 3x = 3(40) = 120°

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