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Eddi Din [679]
4 years ago
12

Find the surface area of this shape (here is the grid too)

Mathematics
1 answer:
Tanzania [10]4 years ago
7 0

Answer:

12

Step-by-step explanation:

The second diagram is most helpful for finding the surface area.

  1. Find the area of the middle square: 2 * 2 = 4
  2. Find the area of the triangle using <em>A = 1/2*B*H,</em> so <em>A = </em>1/2 * 2 * 2 = 2
  3. Since there are 4 triangles, the surface area of all the triangles is 2 * 4 = 8
  4. Add the surface area of the triangles with the surface area of the square to get the total surface area: 8 + 4 = 12

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