1.

Two angle are supplementary and the larger is 20°less then three times the smaller.find the angle

Answer» LET SMALLER ANGLE =x
largerangle=3x-20
so,a.t.q
x+3x-20=180
4x=180+20
4x=200
x=200÷4
x=50
3x-20=50×3-20
=130




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