the angle of a triangle are (X + 10) ( x + 40) & (2x- 30) find the value of x
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The sum of angles of the triangle is 180°
x+10+x+40+2x-30=180
4x+20=180
4x=180-20
4x=160
x=160/4
x=40°
x+10+x+40+2x-30=180
4x+20=180
4x=180-20
4x=160
x=160/4
x=40°
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