jbush15 jbush15

31-07-2017
Mathematics

contestada

ind the area of an octagon with a radius of 6 meters. Round your answer to the nearest tenth.

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HomertheGenius HomertheGenius

07-08-2017

Area of an octagon :
A = 2 a² ( 1 + √ 2 )
and a = r √ 2
a = 6 √ 2
A = 2 * ( 6 √2 )² * ( 1 + √ 2 ) =
= 2 * 72 ( 1 + √ 2 ) =
= 144 * ( 1 + √ 2 ) m² = 144 + 144 √2 ≈ 347.65 m²

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