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

Oct 3, 2018

#1
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really....

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

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Oct 3, 2018

#1
+4833
+1

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
#2
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Work out the area of a rectangle with base, b = 18mm and perimeter, P = 50mm.

Oct 3, 2018