Question

ABCD is a cyclic quadrilateral and ???? AOC is an equilateral triangle find the value of angle ACD and ABC

Answer 1

it is given that, is an equilateral triangle

We have to find

Since is an equilateral triangle.

So

And

…… (1)

Since, quadrilateral BACE is a cyclic qualdrilateral

So , (Sum of opposite angles of cyclic quadrilateral is.)

Hence