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What is the mesuement for y

What is the mesuement for y-example-1

1 Answer

10 votes

Answer:

60 degrees

Explanation:

add all together

make an equation of the sum= 180

this would mean 9r-9=180

solve

9r-9=180

9r=189

r=21

plug 21 in for r on the angle Y

solve

3(21)-3

63-3

60

User Cobrexus
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