The figure below shows
a cyclic quadrilateral ABCD. A circle O' meets AB, BC, CD, and AD at E, F,
G, H, I, J, K, and L. EJ intersects to LG and KH at M and Q. FI intersects
to LG and KH at N and P. Prove that MNPQ is a cyclic quadrilateral.

Geometry Problems

Ten problems: 1391-1400

Visual Index

Open Problems

All Problems

Concyclic
Points

Cyclic Quadrilateral

Circle

Octagon

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