KierseyClemons
Find the value of x and Find the measure of the vertex angle A?



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iTiaax
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19. d
20. a

mathstudent55
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In a triangle, the sum of the measure of the angles is 180
x + 2x + 2x = 180
Solve for x

KierseyClemons
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can you explain how you got your answer @iTiaax please?

mathstudent55
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@KierseyClemons See my answer for the explanation.

iTiaax
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x+2x+2x=180
5x=180
x=180/5
x=36

KierseyClemons
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Thanks guys!

mathstudent55
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wlcm