How do I do this? Please help. Thank you, for your smartness and knowledge.

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asked Jun 7, 2017 73.3k views

1 Answer

Brendan Gannon · Answer 1 · 2017-06-13T14:04:39+0000

I hope this helps you

B+A=m (DCB)

two interior angles sum is exterior angle

3y+22+4y=106

7y=106-22

7y=84

y=12

m (A)=4y=4.12=48

m (B)=3y+22=3.12+22=58

m (BCA)+106=180

m (BCA)=74

How do I do this? Please help. Thank you, for your smartness and knowledge.

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