3 years ago

What is the surface area of this rectangular prism

Mathematics

1 answer:

Marina CMI [18]3 years ago

5 0

Answer:

C. $490 \textrm{ units}^{2}$

Step-by-step explanation:

The formula for surface area is

LA + 2B

LA indicated Lateral Area and can be found multiplying perimeter of base by the height.

7 + 7 + 14 + 14 = 42 * 7 = 294

Multiply the LA from above with the area of base times 2.

98 * 2 = 196

294 + 196 = 490, so the surface area of the rectangular prism is 490 units.

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