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Find the surface area of the rectangular prism

Find the surface area of the rectangular prism-example-1
User Wronski
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2 Answers

5 votes

Answer:

S.A. = 328

Explanation:

The formula of a surface area of a rectangular prism l × w × h:


S.A.=2(lw+ih+wh)

We have l = 5.5, w = 5 and h = 13. Substitute:


S.A.=2(5.5\cdot5+5.5\cdot13+5\cdot13)\\\\S.A.=2(27.5+71.5+65)\\\\S.A.=2(164)\\\\S.A.=328

User HDCerberus
by
7.8k points
5 votes
5.5 • 5= 27.5+27.5+65+65+71.5+71.5=328

13•5=65
13•5.5=71.5

THE ANSWER IS 328
User Sydney
by
7.9k points

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