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Kendra found the surface area of the prism below. She started by finding the surface area of the triangle and did 16*12 to get 192. Then she multiplied that by 2 and got 384.

Next she found the areas of the rectangles by doing 10*20 = 200, 12*10 = 120, and 16*10 = 160.

Finally, she added all the area together and got 672cm squared.



Where did Kendra make her mistake?

Kendra found the surface area of the prism below. She started by finding the surface-example-1
User Mattbh
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1 Answer

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Answer:

step 1

Explanation:

She didn't divide the 192 by 2 to get the surface area of one triangle

User Naja
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