2 years ago

Find the surface area of the rectangular prism

2 answers:

mezya [45]2 years ago

8 0

Answer:

Step-by-step 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:

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

7 0

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

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