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Calculate the surface area:
4ft
7ft
11 ft

Calculate the surface area: 4ft 7ft 11 ft-example-1

1 Answer

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Answer:

Surface area = 298 ft^2

Explanation:

One of the formula we can use for surface area of a rectangular box is given by:

SA = 2lw + 2lh + 2wh, where

  • SA is the surface area in square units,
  • l is the length,
  • w is the width (also known as breadth),
  • and h is the height.

In the figure, the height is 7 ft, the length is 11 ft, and the width is 4ft. Thus, we plug in 7 for h, 11 for l, and 4 for w in the surface area formula to find the surface area of the rectangular box:

SA = 2(11 * 4) + 2(11 * 7) + 2(4 * 7)

SA = 2(44) + 2(77) + 2(28)

SA = 88 + 154 + 56

SA = 242 + 56

SA = 298

Thus, the surface area of the rectangular box is 298 square ft or 298 ft^2

User Dmitry Mugtasimov
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