Question 1089069
The sum of the angles of EVERY triangle total 180.
And what you are saying is:
x+2x+10+5x+10 = 180
add x and numbers on left:
8x+20 = 180
8x = 160
x = 20
the angles are:
x = 20
2x+10 = 2(20)+10 = 50
5x+10 = 5(20)+10 = 110
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Check: 20+50+110 = 180 Correct