Mathematics, 19.03.2022 14:00 hhvgbv49551

. A The training arena covers 7,800 square feet. How long must Hanna's rope be if she stands in the center and guides the horse in a circle around the perimeter of the arena? Hint: This means she is trying to find the radius of her circular arena. Use 3.14 for pi also please explain

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. A The training arena covers 7,800 square feet. How long must Hanna's rope be if she stands in the...