promisewagner1p08m8e
promisewagner1p08m8e
29-01-2018
Mathematics
contestada
Find the value of x
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choixongdong
choixongdong
29-01-2018
sum of interior angles = 180(n - 2)
in this case n = 5 so 180(5-2) = 180(3) = 540
120 + 120 + x + x + x = 540
3x + 240 = 540
3x = 300
x = 100
answer
B) 100
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