Question

$the four \: angle \: of \: a \: quadilqteral \: of \: ratio \: of \: 3 : 4 : 5 : 6 .find \:the \: angle.$
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Answer 1

Let the angles of the quadrilateral be 4x, 5x,

3x and 6x

∴ 4x + 5x + 3x + 6x = 360°

18x = 360°

x = 360°/18 = 20°

First angle = 4x = 4 × 20° = 180°

Second angle = 5x = 5 × 20° = 100°

Third angle = 3x = 3 × 20° = 60°

Fourth angle = 6x = 6 × 20° = 120°