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27-10-2020
Mathematics

contestada

What are the three angle measures in the
triangle shown below?
5x - 7
11x – 4
3x + 1

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27-10-2020

All angles in a triangle adds to 180

5x-7+11x-4+3x+1=180
19x-10=180
19x=190
x=10

Substitute x for each equation

5(10)-7=43
11(10)-4=106
3(10)+1=31

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