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Box A has a surface area of 98 in 2. If box B is 4 times the size of box A, what is the surface area of box B?

User Channasmcs
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1 Answer

14 votes
14 votes

Given:

Box A has a surface area of 98 in².

Box B is 4 times the size of box A.

To find:

The surface area of box B.

Solution:

Let "a" be the side of box A , then "4a" be the side of box B because box B is 4 times the size of box A.

We know that the areas of similar figures are proportional to the square of their corresponding sides.


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Using cross multiplication, we get


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Therefore, the surface area of box B is 1568 in².

User Andrii Kudriavtsev
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