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22-05-2017
Mathematics

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What is the surface area of this rectangular prism?

A. 78 cm2

B. 120 cm2

C. 158 cm2

D. 180 cm2

What is the surface area of this rectangular prism A 78 cm2 B 120 cm2 C 158 cm2 D 180 cm2 class=

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Аноним Аноним

22-05-2017

Remember - the surface area of a rectangle is 2(h x l) + 2(h x w) + 2(l x w).
2(3 x 8) = 2 x 24 = 48
2(3 x 5) = 2 x 15 = 30
2(8 x 5) = 2 x 40 = 80
48 + 30 + 80 = 158. Hope I could help!
rrriok, the house of... idk

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