ShalynnH306441 ShalynnH306441

03-11-2022
Mathematics

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A side of the triangle below has been extended to form an exterior angle of 129'. Findthe value of x. 20

A side of the triangle below has been extended to form an exterior angle of 129 Findthe value of x 20 class=

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AngellaO341228 AngellaO341228

03-11-2022

Take into account that angles x and 129 are supplementary angles, that is, they add up 180 degrees.

Then, you can write:

x + 129 = 180

solve the previous equation by subtracting 129 both sides

x = 180 - 129

x = 51

Hence, the value of x is 51

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