If the angles of a four sided polygon are in the ratio 7:8:9:12, then the angles would be?

If the angles of a four sided polygon are in the ratio 7:8:9:12, then the angles would be? Correct Answer 70, 80, 90, 120

Let us assume x to be the common multiple. Now, the sides of the four sided polygon would be 7x, 8x, 9x and 12x. The sum total of any four sided polygon is 360°. Therefore 7x+8x+9x+12x=360 Therefore 36x=360 Therefore x=10° Therefore the angles are, 7x=70, 8x=80, 9x=90 and 12x=120. One can recheck their answer by, verifying the total as One can recheck their answer by, verifying the total as 360°.
Bissoy MCQ

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