The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Math Topics » geometry.puzzles

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Promontorium Similis
Replies: 3   Last Post: Sep 28, 2010 8:10 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]

Posts: 658
Registered: 12/6/04
Promontorium Similis
Posted: Sep 25, 2010 6:28 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

An irregular triangular pyramid has base measurements of 10,11 and 12. The sum of all six edges equals 100. At each of the 3 sloping faces the angle at the apex is identical. What is this angle?.

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.