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Triangle- interior angle Please help !
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3 votes
Triangle- interior angle
Please help !

Triangle- interior angle Please help !-example-1
User Ricky Lee
by
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1 Answer

0 votes

Answer:

x = 25

<B = 120 degrees

<C = 30 degrees

Explanation:

Total angle measure of a triangle - 180 degrees

Add all the angles together to find the value of x

30 + 4x + 20 + x + 5 = 180

55 + 5x = 180

55 - 55 + 5x = 180 - 55

5x = 125


(5x)/(5) = (125)/(5)

x = 25

<B = 4(25) + 20

<B = 100 + 20

<B = 120

<C = 25 + 5

<C = 30

User Clarkk
by
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