Question

if the supplement of an angle is three times its complement,find the angle.

Answer 1

supplement =(90-x)3
180=x+(90-x)3
180=x+270-3x
180-270=-2x
-90=-2x
-90/-2=x
45=x

Answer 2

let the angle be x

so supplementary angle =180-x
complimentary angle=90-x
180-x=3(90-x)
180-x=270-3x
2x=90
x=90 degrees


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