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August 28, 2014

August 28, 2014

Posted by **Jack** on Monday, April 2, 2012 at 2:31pm.

If the height of the two sandpits is the same, what are the dimensions of the base of the second sandpit?

Answer

A. 5 feet x 2 feet

B. 10 feet x 7 feet

C. 9 feet x 5 feet

D. 20 feet x 25 feet

- geometry -
**Luismiguel**, Wednesday, April 18, 2012 at 7:23pmYou have:

lxWxh= volume of a square prism

So...

1.75ft X 5ft X 7ft= 61.25

+17.5( what the kid is missing)

78.75(sum)=(1.75ft)l x W

45=l x W

Proportions:

7ft/35ft=x/45ft= l = 9ft

Then do the same for the width and you get that the final answer is

C. 9ft x 5ft

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