Day 21: This Diagram Looks Familiar

Geometry Level 2

A cyclic quadrilateral has its sides extended and they do meet, creating points EE and FF in the diagram.

As shown, EE and FF form a circle together with two vertices of the quadrilateral ((say BB and D).D).

Find the angle between line segments EFEF and ACAC.


This problem is part of the Advent Calendar 2015.
×

Problem Loading...

Note Loading...

Set Loading...