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Mathematics, 22.07.2020 18:01 ErrorNameTaken505
A cone has radius 5x cm and a height 12x cm. A sphere has radius r cm. The cone has the same total surface area as the sphere. Show that r²=45÷2 x². (The curved surface area, A, of a cone with radius r and slant height l is A=πrl.) (The surface area, A, of a sphere with radius r is A=4πr².) someone please help with this last one
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A cone has radius 5x cm and a height 12x cm. A sphere has radius r cm. The cone has the same total s...
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