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An aircraft hangar is semi-cylindrical with
diameter 40 m and length 50 m. A helicopter
places a cable across the top of the hangar, and
one end is pinned to the corner at A. The cable
is then pulled tight and pinned at the opposite
corner B. Determine the length of the cable.

An aircraft hangar is semicylindrical with diameter 40 m and length 50 m A helicopter places a cable across the top of the hangar and one end is pinned to the c class=

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