faithroses98 faithroses98

28-10-2015
Mathematics

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In ΔRST, m ∠ R = (2x + 10)°, m ∠ S = (2x + 25)°, and m ∠ T = (x – 5)°. Find the value of x.

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darth666 darth666

28-10-2015

R+S+T=180

2x+10+2x+25+x-5=180

5x+30=180
5x=180-30
5x=150
x=30

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