Question

if the angle of quadrilateral are in ratio 5:8:11:12, find all the angles.​

Answer 1

let angles are 5x, 8x, 11x, 12x.

5x+8x+11x+12x=360

36x=360

x=10

angle A =5x =50

angle B = 8x=80

angle C=11x=110

angle D=12x=120.

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