3 years ago

The surface area of a solid is 10 square feet. The dimensions of a similar solid are

Mathematics

1 answer:

maxonik [38]3 years ago

6 0

Answer:

90 ft²

Step-by-step explanation:

Given the sides of similar figures in the ratio a : b, then

ratio of areas = a² : b²

Here ratio of sides = 1 : 3 , thus

ratio of areas = 1² : 3² = 1 : 9

That is the surface area of the new solid is 9 times the first

SA = 9 × 10 = 90 ft²

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