Question

The ratio of the volumes of two cubes is 729 : 1331. what is the ratio of their total surface areas

Answer 1

volume of cube= a^3
here a1^3:a2^3 =729:131
a1:a2 =9:11
surface area of a cube =4a
surface area of a1 = 4×9 =36
surface area of a2 = 4×11 =44
total surface area of cubes= a1+a2= 80

Answer 2

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