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Storm's A' Brewin'

What is the perpendicular height of a cloud when its angles of elevation were 35 degrees and 64 degrees as taken by two observers at the same time, both on the same side of it, and in the same vertical plane; the distance between them is 880 yards. And what is the cloud's distance from these two observers?

Hutton's Course of Mathematics, 1816

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"Storm's A' Brewin'," Convergence (July 2006)