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20 votes
20 votes
Find the measure of arc ZY

Find the measure of arc ZY-example-1
User ZettaP
by
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1 Answer

15 votes
15 votes

Answer:

142

Explanation:

8a-9=7a+1

a=10

7(10)+1=71

71x2=142

User Quis
by
2.9k points