Question

in the given figure, ABCD is a cyclic quadrilateral. If ∠BCX=70° and ∠ADX'=80°, then find x and y.

image is also given​

Answer 1

Answer:

Proof= ∠ADC=180-80=100

∠BCD=180-70=110

we know that sum of opposite angle of cyclic quadrilateral is 180°

X + 100 = 180°

X = 80 and similarly, Y = 70

another pattern,

external angle of cyclic quadrilateral is equal to the interior opposite angle

                                                HENCE PROVE

Step-by-step explanation: