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What is the surface area of the right rectangular prism shown?

What is the surface area of the right rectangular prism shown?-example-1

2 Answers

3 votes

Answer:

b) 286 m²

Explanation:

A = 2(l×w + l×h + w×h)

l = 9m

w = 7m

h = 5m

A = 2(9m×7m + 9m×5m + 7m×5m)

= 2(63m² + 45m² + 35m²)

= 2×143m²

= 286 m²

User Habax
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3 votes

Answer:

B. 286 m²

Explanation:

Surface area = 2*(9*5) + 2*(5*7)+ 2*(9*7) = 286 (m²)

User Xinyu Li
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5.1k points