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Find the width of the rectangular prism when the surface area is 208 square centimeters? The height is 8cm and the length is 6cm. What is the width?

User Trevon
by
8.0k points

2 Answers

7 votes
SA = 2(wl + hl + hw)
SA = 208
h = 8
l = 6

208 = 2(6w + (8*6) + 8w)
208 = 2(14w + 48)
208 = 28w + 96
208 - 96 = 28w
112 = 28w
112/28 = w
4 = w <==== the width is 4 cm
User Divya Barsode
by
8.3k points
4 votes

Answer:

Width = 4 cm.

Explanation:

Given : surface area is 208 square centimeters? The height is 8cm and the length is 6cm.

To find : Find the width of the rectangular prism.

Solution : We have given

Surface area of rectangular prism = 208 square cm.

Height = 8 cm .

Length = 6 cm

Width = W

Surface area of rectangular prism = 2 ( length * width + width * height + length* height).

Plugging all the values,

208 = 2 ( 6 * W + W * 8 + 6 * 8).

208 = 2 ( 6W + 8W + 48).

208 = 2 ( 14W + 48).

On dividing both sides by 2

104 = 14 W + 48.

On subtracting both sides by 48

104 - 48 = 14 W.

56 = 14 W.

On dividing both sides byy 14

W = 4 cm

Therefore, Width = 4 cm.

User Kel Solaar
by
8.4k points