Mathematics, 24.08.2021 14:00, rosieposie27

$a= 2\pi r(2r+\sqrt{x} hx^{2} +2*rx^{2} )$ If the radius of the closed cone is doubled, show algebraically how this affects the surface area in comparison to the original cone.

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If the radius of the closed cone is doubled, show algebraically how this affects the surface area...