the angles of a triangle are 3 x minus 2 2 X + 1 10 X + 12 find the value of x and hands so that the triangle is isosceles
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3x-2+2(x+1)+10(x+12) = 180 (sum of angle )
3x-3+2x+2+10x+120 = 180
15x+120 = 180
15x = 180 - 120
15x = 60
x = 60/15
x = 4
3x-2 = (4)-2 = 12-2 = 10
2(x+1) = 2(4+1) = 8+2 = 10
10(x+12) = 10(4+12) = 40+120 = 160
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