Math Puzzle of the Week
December 29, 2008
Geometry: A rhombus has sides of length 10 and its diagonals differ by 4. What is its area?
From NCTM
Answer available
January 5, 2009
next puzzle.
Answer to math puzzle of
December 22
:
Simplify:
From NCTM
Solution: Take the square root of the square: =
For more math puzzles, check out
http://www.mathpuzzle.com/
,
http://mathschallenge.net/
,
http://www.princeton.edu/~mathclub/puzzles4.html
and
http://mathforum.org/k12/k12puzzles/
©copyright 2008, Louis Bookbinder -
booky1@earthlink.net
updated 30 December 2008
.