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Mathematics: Post your doubts here!

That would probably get you a right answer wrong working mark. The correct method is to calculate the volume scale factor (k^3) and use that to find the area scale factor (k^2) k^3 = 1458/3456 k^3 = 27/64 k = 3/4 k^2 = 9/16 Hence the surface area of the smaller shape is A = 1024*9/16 = 576cm^2
- drboron
- Post #5,497
- Oct 27, 2014
- Forum: O-Levels / GCSEs / IGCSE

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