Asked by Shannon

a rectangular prism has a width of 92ft. and a volume of 240ft^3. Find the volume of a similar prism with a width of 23ft. Round to the nearest tenth if necessary.
a)3.8ft^3
b)60ft.^3
c)15ft.^3
d)10.4ft.^3

I am totally cinfused by this. Can somebody please help me? I would appreciate it. Thankss.

Answers

Answered by Reiny
the volume of two "similar" shapes is proportional to the cubes of the corresponding sides

so if the new volume is V then

V/240 = 23^3/92^3
V = 240(12167)/778688
= 3.75

so it looks like a) is the correct answer

Answered by Shannon
thank you Reiny!
Answered by Ano
That answer makes no sense though the width of the simmulair prism is already 23ft so 3.8ft^3 isn't a bigger number than 23ft also when you multiply the length and the height it will no were be 3.8^3 so good job stupid.

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