SOLUTION: A city park has a circular goldfish pond with a diameter of 40 metres. Park officials want to surround the pool with a 100 centimetre-wide cement walk. Find the volume of cement ne

Question 1169347: A city park has a circular goldfish pond with a diameter of 40 metres. Park officials want to surround the pool with a 100 centimetre-wide cement walk. Find the volume of cement needed for this project, to the nearest tenth of a cubic metre, if the layer of concrete is to be 20 centimetres deep
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39625) (Show Source): You can put this solution on YOUR website!
The AREA of the path, , in square meters.
Thickness top to bottom is 0.2 meters, so volume of the path is , in cubic meters. Compute the value.
Answer by ikleyn(52855) (Show Source): You can put this solution on YOUR website!
.
A city park has a circular goldfish pond with a diameter of 40 metres. Park officials want to surround the pool
with a 100 centimetre-wide cement walk. Find the volume of cement needed for this project, to the nearest tenth of a cubic metre,
if the layer of concrete is to be 20 centimetres deep
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For your info

Cement mass comprises only small fraction of the concrete mass. Therefore, the presented data is not enough to answer the problem's question.

Strictly saying, it is not a Math problem - - - it is a provocation, instead.

Or a very unprofessional formulation - - - of the two my statements choose whichever you like more.

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