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The diagram show a triangle 108°, 18u and 18u
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The diagram show a triangle 108°, 18u and 18u

User Arnaud Meuret
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1 Answer

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Consider that the sum of the interior angles of a triangle is equal to 180°. Then, by using the given measure in the image, you have:

18u + 18u + 108 = 180 simplify like terms left side

36u + 108 = 180 subtract 108 both sides

36u = 180 - 108

36u = 72 divide by 36 both sides

u = 72/36

u = 2

Hence, the value of u is 2

User Noisy Cat
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