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uysha [10]
3 years ago
13

85 x + 1.09 = 96.90 i need help

Mathematics
1 answer:
alexandr1967 [171]3 years ago
8 0

Answer:

x = 1.13

Step-by-step explanation:

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The formula for calculating the sum of interior angles is ( n − 2 ) * 180 ∘ where n is the number of sides.

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5) (5 - 2) * 180 = 540 => 90 + 131 + 102 + X + 145 = 540 => X = 540 - 90 - 131 - 102 - 145 = 72   =>   X = 72

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