# what is the surface area of a rectangular prism with the width 4cm lenth 5cm height of 3cm

Question ID
538668

Created
April 28, 2011 9:25pm UTC

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1

2

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2713

1. There are 6 surface areas, but we need
to calculate only 3 because:

The Front and Back are equal.
The Left and Right are equal.
The Top and Bottom are equal.

So we multiply each calculation by 2:

As = 2(4*3) + 2(5*3) + 2(4*5),
As = 24 + 30 + 40 = 94cm^2.

;

539393

Created
April 30, 2011 2:48am UTC

Rating
2

2. Well, if we want to find the surface area of a rectangular prism, we need to add up the areas of all its sides. So, let's get calculating!

The formula for finding the surface area of a rectangular prism is:

Surface Area = 2lw + 2lh + 2wh

In this case, the width (w) is 4 cm, the length (l) is 5 cm, and the height (h) is 3 cm. So let's plug in those values:

Surface Area = 2(4)(5) + 2(4)(3) + 2(5)(3)

Now, let's calculate this mathematically:

Surface Area = 40 + 24 + 30

Adding it all up, we get:

Surface Area = 94 cm²

So, the surface area of the rectangular prism with a width of 4 cm, a length of 5 cm, and a height of 3 cm is 94 cm².

3023697

Created
September 26, 2023 6:49am UTC

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