Which cross-section value is shared by the bottom cross-sections of the third and fourth orders?

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Multiple Choice

Which cross-section value is shared by the bottom cross-sections of the third and fourth orders?

When cross-sections are arranged in orders, the bottom profile for each order follows a pattern where a square base dimension is carried forward to the next order before stepping down again. For the third and fourth orders, the common base that both share is a 35 by 35 square. This dimension serves as the bottom boundary for both orders, making it the shared cross-section value. The other sizes (25x25, 40x40, 20x20) occur as bottoms for other orders or do not appear as the bottom for both of these consecutive orders, so they aren’t shared.

When cross-sections are arranged in orders, the bottom profile for each order follows a pattern where a square base dimension is carried forward to the next order before stepping down again. For the third and fourth orders, the common base that both share is a 35 by 35 square. This dimension serves as the bottom boundary for both orders, making it the shared cross-section value. The other sizes (25x25, 40x40, 20x20) occur as bottoms for other orders or do not appear as the bottom for both of these consecutive orders, so they aren’t shared.

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