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Help. Its an emergenc
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Help. Its an emergenc

Help. Its an emergenc-example-1
User Sa Yang
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1 Answer

4 votes

Answer:

Angle A is 20°

Explanation:

The sum of the interior angles of a triangle is 180°.

90 + 10x + x +13 = 180 Combine like terms

103 + 11x + 180 Subtract 103 from both sides

11x = 77 Divide both sides by 11

x = 7

Angle A is 13 + x. X is 7, so 13 + 7 = 20

User Ian Patrick Hughes
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