Red Hill Island
The Red Hill Island is a square base pyramid island, whose 8 sides are all equal to 100 unit. The points A and B are midpoints of the edges.
Everyday, Fred the farmer works at A, before night he move downhill to the shore (anywhere on perimeter of the square), wash his tools, and return to his house at B.
What is the minimum distance? Round to nearest integer.
The answer is 150.
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1 solution
hint:
1 0 0 × 2 3 = 1 5 0