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A rectangular prism has dimensions of 4 inches by 3 inches by 7 inches.

Calculate the surface area. Show your work

A rectangular prism has dimensions of 4 inches by 3 inches by 7 inches. Calculate-example-1
User BFry
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2 Answers

3 votes

Answer:

Explanation:

Given dimensions of the rectangular prism ,

4"×3"×7"

We know, Total surface area of a cuboid= 2(lb+bh+hl)

where, l=length of the cuboid

 b= breadth " " "

 h= height " " "

Since, a rectangular prism holds the shape of a cuboid, therefore it's surface area should also be 2(lb+bh+hl)

Now, surface area of the rectangular prism = 2(4×3+3×7+7×4)

 =2(12+21+28)

 =2×61

 =122 square inches.

User Raechel
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8.4k points
4 votes

Answer: the answer would be 122

Step-by-step explanation:

To find the surface area you need to find the area of each face and add them together

2 (W L+H L+H W) = surface area

2·(4·7+3·7+3·4)=122

User Fargonaut
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