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To find the surface area of the tank, we need to calculate the area of each of the sides and then add them all together.
1. Front and back walls:
- Front wall: 33.93 inches * 17.69 inches = 600.1817 square inches
- Back wall: 33.93 inches * 17.69 inches = 600.1817 square inches
2. Side walls:
- Side wall 1: 15.81 inches * 17.69 inches = 279.6609 square inches
- Side wall 2: 15.81 inches * 17.69 inches = 279.6609 square inches
3. Bottom:
- Bottom: 33.93 inches * 15.81 inches = 536.6253 square inches
Total surface area:
600.1817 + 600.1817 + 279.6609 + 279.6609 + 536.6253 = 2296.31 square inches
Therefore, the surface area of the tank without a top cover is 2296.31 square inches.