# Circle Areas #2: The Basics

Geometry Level 3

In the diagram above, Circle O is circumscribed about Triangle ABC, where AB=$$4$$, AC=$$4$$, and BC=$$6$$. The area of Circle O can be expressed as $$\frac { a\pi }{ b }$$, where $$a,b$$ are constants, are positive integers, and share no common factors greater than 1. What is $$a+b$$?

Note: Not to scale

This is part of the set Circles, made by Chris H.

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