sleepfulpeace sleepfulpeace
  • 08-03-2022
  • Mathematics
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need help with geometry
problem #8

need help with geometry problem 8 class=

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galaxyethereal50
galaxyethereal50 galaxyethereal50
  • 08-03-2022

Suppose ABC be a triangle such that ∠A = 4x + 7 ,

∠B = 3x + 5 & ∠C = 6x + 12

We know, the sum of interior angles of a Triangle is 180°, therefore, ∠A + ∠B + ∠C = 180°

or, 4x + 7 + 3x + 5 + 6x + 12= 180°

or, 13x = 180 - 24

or, x = 156/ 13 = 12

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