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Djidiouf · Answer 1 · 2022-07-24T07:17:21+0000

Answer:

473

Explanation:

The square surface area is 121 (11x11)

For the triangles, you do 16x11, which equals 176 and then divide by 2, to get 88. Since there are 4 triangles, I did 88x4 and got 352 and then added 121 to get 473

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