3abel6
3abel6 3abel6
  • 21-06-2018
  • Mathematics
contestada

What is the value of n?

What is the value of n class=

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choixongdong
choixongdong choixongdong
  • 21-06-2018
An exterior angle of a triangle is equal to the sum of the opposite interior angles

so
n = (180 - 133) + (180 - 142)
n = 47 + 38
n = 85

answer is A. 85
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Аноним Аноним
  • 21-06-2018
133  = 38 + m angle adjacent to n  (exterior angle of triangle theorem)
so m this angle =  133 - 38 = 95 degrees
Thus m  n = 180 - 95  = 68 degress

Its option A.

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