Question

Look at this rectangular prism:

3 ft
6 ft
3 ft
If all three dimensions are doubled, then which of the following statements about its surface
area will be true?

Answer 1

Explanation:

SA = 2 ( 3x6 + 6x3 + 3x3) = 90 ft^2 now double everything

SA = 2 ( 6x12 + 12 x6 + 6x 6 ) = 360 ft^2 FOUR times larger SA