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telo118 [61]
2 years ago
12

What is the total surface area of the figure?

Mathematics
2 answers:
WITCHER [35]2 years ago
6 0

Answer:

531 in²

Step-by-step explanation:

5 faces of the cube are facing the surface because the top one is shared with the triangular prism.

Surface area of a cube is S = 5 × (9)²

S = 405 in²

Now the triangular prism: S = (1/2)lP + B, where l is slant height and p is the perimeter of the base. (ignore B base area because this is also not facing the surface/shared with the cube).

S = (1/2)7×(4×9)

S = 126 in²

Add 126 + 405 to get 531 in²

Yuliya22 [10]2 years ago
3 0
ANSWER : 531in S:405 in
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Answer:

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Let's first expand the parentheses on both sides. Remember that when expanding parentheses, the result will be the sum of the products of the "outside number" with each of the "inside number".

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Hope this helps!

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