1.

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

Answer»

Let X be the common multiplehence3x+5x+9x+13x=360...as sum of angles of a quadrilateral30x=360X=12hence angles will be3*12=36°5*12=60°9*12=108°13*12=156°

3 x +5x +9 x +13x = 360 30x = 360x = 360 over 30



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