A cylinder with base radius 5 and height 10 is sitting on a table. A spotlight with a cylindrical beam of radius 5 is shining directly at the cylinder. The beam is parallel to the table and the bottom of the beam just touches the table. The cylinder just barely blocks the entire light beam.

What is the illuminated area?

(In reply to Possible Solution by broll)

The shape is not an ellipse.

Posted by Jer on 2021-11-04 06:56:26