Question

an angle is 2/3 of its compliment. Find its magnitude

Answer 1

x=(2/3)(90-x)
x=60-(2/3)x
(5/3)x=60
x=180/5
x=36 °

Answer 2

Let the complement be x
Then angle then=2/3x
So ,x+2/3x=90
3/3x+2/3x=90
5/3x=90
x=90×3/5
x=18×3
x=54

So measure of the angle is 54 degree

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-Vatsalya