perplexus.info :: Calculus : Partially illuminated cone

Partially illuminated cone (Posted on 2021-11-12)

A cone with radius 6 and height 8 is sitting on a table. A spotlight with a cylindrical beam of radius 3 is shining directly at the cone. The beam is parallel to the surface of the table and the bottom of the beam just touches the table. The cone just barely blocks the entire light beam.

What is the illuminated area?

No Solution Yet Submitted by Jer

Rating: 5.0000 (1 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re: a hundred million points of light	Charlie	2021-11-14 11:44:28
a hundred million points of light	Charlie	2021-11-14 11:24:44
re: Some analytic progress	Jer	2021-11-14 10:39:09
re: Some analytic progress	Steven Lord	2021-11-13 23:02:33
Some analytic progress	Brian Smith	2021-11-13 15:58:02
Looking for my error	Jer	2021-11-12 17:37:46
re(2): soln	Charlie	2021-11-12 10:37:41
re: soln	Charlie	2021-11-12 10:34:14
re: soln	Jer	2021-11-12 10:19:46
soln	Steven Lord	2021-11-12 09:30:05

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