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Question

The angles of quadrilateral are in the ratio 3:5:9:13. Find all the angles of the quadrilateral.

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Solution

Let ABCD be a quadrilateral in which A : B : C : D = 3:5:9:13



Sum of the ratios =3+5+9+13=30
Also , A + B + C + D = 360o
Sum of all the angles of quadrilateral is 360o.
A=330×360o=36o
B=530×360o=60o
C=930×360o=108o
D=1330×360o=156o

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