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Your answer would be 1,176 square feet ...here's how. Your equation is 1/3 (length x width x height) 1/3 (12 x 3.5 x 7) 1/3 (3,528) 1,176 square feet Hope this helped you out! Good luck.

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Q: What is the surface area of a rectangular pyramid that is 12 ft long 3.5 ft wide and 7 ft high?
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