i will be Thankful if Anybody can help me in this question:
4 circle are Tangent in A, B, C and D point.
ABCD is Cyclic quadrilateral?
A convex quadrilateral ABCD is cyclic if and only if its opposite angles are supplementary.
Seeing as how A and C are both acute angles it's not possible that they are supplementary.
Thus ABCD is not a cyclic quadrilateral.