Mathematics, 26.05.2020 14:57 meg7211

A pentagon train is made by attaching regular pentagons with 1" sides so that each pentagon, except the two on the ends, is attached to exactly two other pentagons along sides, as shown. How many inches are in the perimeter of a pentagon train made from 85 pentagons?

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A pentagon train is made by attaching regular pentagons with 1" sides so that each pentagon, except...