Question

In cyclic quadrilateral ABCD. If angle A: angle C=4:5 then find angle C​

Answer 1

Answer:

100°

Step-by-step explanation:

let angle a be 4x

let angle c be 5x

we know that opposite side of cyclic quadrilateral is180°

thus,

4x+5x=180°

9x=180°

x= 20°

so ,

angle c = 5x=5*20= 100°

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