4 years ago

If the dimensions of a solid proportionally increase by a scale factor of 5/2, by what factor does the surface area increase?

Mathematics

1 answer:

shusha [124]4 years ago

5 0

Answer:

Step-by-step explanation:

Given that the dimensions of a solid are in proportion a : b, then

then the ratio of the area is a² : b²

Thus

scale factor = $\frac{5}{2}$ , then

area factor = $\frac{5^2}{2^2}$ = $\frac{25}{4}$ → D

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