leaaguyton1 leaaguyton1

19-04-2018
Mathematics

contestada

This is a polygon. I need help finding the missing angle ?

This is a polygon I need help finding the missing angle class=

Respuesta :

hudadagra hudadagra

19-04-2018

First find how much the sum of interior angles measure:

180(n-2)

(n is the number of sides)

180 (5 - 2)
180 (3)
540

Now add all the angles and set them equal to 540.

87 + 105 + 135 + 92 + x = 540
419 + x = 540
x = 121

Hope this helps :)

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