If angles A, B, C and D of the quadrilateral ABCD, taken in order, are in the ratio 3:7:6:4,
then ABCD is a:
(A) rhombus
(B) parallelogram
(C) trapezium
(D) kite
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Given,ratio of angles of quadrilateral
To prove -ABCD is 3:7:6:4
Proofs - let angle of quadrilateral ABCD be 3x, 7x, 6x and 4x, respectively....we konow that, sum of all angles of a quadrilateral is 360°.
3x + 7x + 6x + 4x = 360°
=> 20x = 360°
=> x=360°/20° = 18°
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