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Math, Geometery

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Hey Guys I have a problem like on the kids on here.
What is the area of a regular pentagon with a side length of 10 inches and a distance from the center to a vertex of 10 inches?
Round by nearest tenth.
I know you have to use pythagrean therom to solve for vertex of 10 inch. but I am stuck after that.. Thanks

  • Math, Geometery -

    A.216.5 sq in.
    B.228.5 sq in.
    C.242.5 sq in.
    D 251.5 sq in.

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