Homework Help: math

Posted by jason on Wednesday, January 12, 2011 at 7:11pm.

If you put four 9-inch square boards together to make a bigger square, what would be the area of the new larger board in square feet?

math - PsyDAG, Thursday, January 13, 2011 at 11:43am
How many boards are you using?

4 boards = 18 inches * 18 inches

144 square inches = 1 square foot.

9 boards = (27 * 27) square inches.

16 boards = ?

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