perplexus.info :: Shapes : A different angle

Home > Shapes

A different angle (Posted on 2003-10-10)

Look at this shape:

Assume AB = AF = FE = ED and BC = CD, and all the angles in the shape are 90 degrees.

Let A be the area of this shape (in cm^2), and P -- the perimeter of this shape (in cm).

If A - P is 60, what is the length of line AC?

See The Solution Submitted by Lewis

Rating: 1.9167 (12 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re(2): simply put

| Comment 11 of 23 |

(In reply to re: simply put by sean)

sorry should finish 125sqrt=11.180339...

Posted by sean on 2003-10-15 11:54:57

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (4)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info