Question

Which angle is equal to two third of its supplement?

Answer 1

Answer:

72°

Step-by-step explanation:

take the angle as 'x'

x=2/3(180-x)

  =120-2x/3                      [multiply the whole equation with 2/3]

x   =  120-2x/3

5x/3=120

5x=360

x=72

the angle is 72°

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