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4 December, 02:48

A 6 foot tall football player casts a 16 inch shadow at the same time stadium we discussed at six for shadow how tall the bleachers

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  1. 4 December, 05:20
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    You need to use a ratio of height (H) to shadow length (L) to solve the first problem. It's basically a use of similar triangles, with two perpendicular sides, and with the shadow making the same angle with the vertical.

    6 ft = 72 ins, so that rH/L = 72/16 = 9/2 for the player.

    So the bleachers are 9/2 x 6 ft = 27 ft.

    For the second problem, 9 ft = 108 in, so that the ratio of the actual linear dimensions to the plan's linear dimensions are 9ft / (1/2in) = 2 x 108 = 216.

    So the stage will have dimensions 216 times larger than 1.75" by 3".

    That would be 31ft 6ins x 54ft.

    Live long and prosper.
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