BMT 2020 Fall - Geometry 4
Source:
December 30, 2021
geometry
Problem Statement
Alice is standing on the circumference of a large circular room of radius . There is a circular pillar in the center of the room of radius that blocks Alice’s view. The total area in the room Alice can see can be expressed in the form , where and are relatively prime positive integers and and are integers such that is square-free. Compute . (Note that the pillar is not included in the total area of the room.)
https://cdn.artofproblemsolving.com/attachments/1/9/a744291a61df286735d63d8eb09e25d4627852.png