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ra1l [238]
2 years ago
15

Did I do this correctly?​

Mathematics
1 answer:
lorasvet [3.4K]2 years ago
6 0

Answer:

No, The answer should be 240

Step-by-step explanation:

  1. The first step to finding the Surface Area was done well and was right but you got confused when trying to add the area of each shape
  2. There is 3 Rectangles and 2 Traingles.
  3. Let's start with the area of the triangles. 1/2bh is the formula for finding area of Traingles. 1/2(4)(6) = 12. We have two Traingles so that would be 24.
  4. Now we have three rectangles with different lengths we need to calculate.
  5. Rectangle 1 = 12 * 8 = 96
  6. Rectangle 2 = 12 * 6 = 72
  7. Rectangle 3 = 12* 4 = 48
  8. 24+96+72+48 = 240.
  9. So, the surface area of the rectangular prisim is 240

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