Math, asked by divaa1523, 1 year ago

In ❑ᵐABCD, m∠A : m∠B = 1 : 3, then m∠C is ________
(a) 90
(b) 120
(c) 45
(d) 135

Answers

Answered by ViSar
0
let the constant of ratio be x
then
ang A = x and angB=3x
In a quadrilateral adjacent sides are supplementary
x + 3x = 180°
x = 45
As ang A and ang C are opp angles
therefore,
ang A = angC = 45°
hence (c)
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