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Find the measure of B

Find the measure of B-example-1

1 Answer

4 votes

Answer:

<B = 52°

Explanation:

The triangle is 180° Angle A and B add up to 118°

4y° + (3y + 7)° = 112°

7y + 7 = 112°

7y = 105

y = 15

Since you solve for y, plug your y into the angles to solve.

<B = 3y + 7

<B = 3 * 15 + 7

<B = 45 + 7

<B = 52°

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