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29 October, 05:31

The regular octagon in the ceiling of this cathedral has a radius of 10.5 feet and a perimeter of 64 feet. What is the length of the apothem of the octagon? Round your answer to the nearest tenth of a foot.

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  1. 29 October, 06:37
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    Apothem is 9.7 feet

    Area of regular octagon is 310.4 square ft
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