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A different angle (Posted on 2003-10-10) Difficulty: 3 of 5
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: Another note: | Comment 8 of 23 |
(In reply to Another note: by Gamer)

Actually, if Callum had already ranked at least one problem, and posted two other comments, then this comment would move him from being a Novice to a Student, wouldn't it?
  Posted by nikki on 2003-10-13 17:58:14

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