A city has a large cone-shaped Christmas tree that stands 20 feet tall and has a diameter of 15 feet at the bottom. The lights will be wound around the tree in a spiral, so that each “row” of lights is about 2 feet higher than the previous row of lights. Approximately how long a strand of lights (in feet) will the city need?
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A city has a large cone-shaped Christmas tree that stands 20 feet tall and has a diameter of 15 feet at the bottom. The lights will be wound around the tree in a spiral, so that each “row” of lights is about 2 feet higher than the previous row of lights. Approximately how long a strand of lights (in feet) will the city need?
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