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Question

Three angles of a quadrilateral are in the ratio 2:6:4. The difference of the least and the greatest of angles out of these angle is fourth angle. Find all the angles of the quadrilateral.

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Solution

Asweknow,Sumofallanglesofquadrialteralis3602x+6x+4x+P=36012x+P=360(i)letleastanglebe2xandgreatestanglebe6x,Theirdifference(2x+6x)=P,4x=Pfromequation,12x+4x=360,16x=360,x=22.5A=2x=2×22.55=45,B=6x=135,C=90,D=90.


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