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Ahmad Houri · Answer 1 · 2018-09-18T12:03:13+0000

The answer is 380 cm. I first found the area of the triangles (14x10x0.5), then I multiplied that by four (because there are 4 triangles total) getting 280. Then I added the area of the base (10x10=100) to 280. Good luck my bud

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