Post a New Question

posted by eliza on Tuesday, August 30, 2011 at 1:55am.

find the length of a side of a square whose area is 400 cm^2

Area equals length times width. A square has equal length sides so the answer is a number times itself that comes out to 400. 20 x 20 = 400. The length of each side is 20cm.

69

More Related Questions