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Work out the base of a square with area, A = 225cm2.

Guest Oct 3, 2018

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really....

$A = s^2 \\ 225 = s^2 \\ s = \pm \sqrt{225} \\ s = \pm 15 \\ \text{negative lengths don't make sense}\\ s = 15$

Rom Oct 3, 2018

Rom · Answer 1 · 2018-10-03T10:15:44

really....

$A = s^2 \\ 225 = s^2 \\ s = \pm \sqrt{225} \\ s = \pm 15 \\ \text{negative lengths don't make sense}\\ s = 15$

Guest · Answer 2 · 2018-10-03T10:52:43

Work out the area of a rectangle with base, b = 18mm and perimeter, P = 50mm.