Can someone please tell me if I have done this correctly?(adsbygoogle = window.adsbygoogle || []).push({});

"2 cylinders are similar. The area of the ends of the smaller and larger cylinders are 16cm^{2}and 100cm^{2}respectively. The height of the larger cylinder is 12.5cm. Calculate the height of the smaller cylinder."

Firstly, if the scale factor for area is 16:100, am I right in saying that the scale factor to be used when calculating lenthgs would be 4:10?

proceding on that basis, the height of the smaller cylinder = 12.5 x 2 / 5 = 5cm.

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# Homework Help: Area and length scale factors

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