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

 Oct 3, 2018

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 #1
avatar+4833 
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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
avatar+4833 
+1
Best Answer

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

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