Surface area is the total area of all surfaces of a 3D object. Volume is the amount of space inside a 3D object. Both are essential for practical appl
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Why does a large sphere have less surface area per unit volume than a small sphere?
Surface area scales with r², volume scales with r³. As r increases, volume increases faster than surface area. The ratio SA/V = (4πr²)/(4/3 πr³) = 3/r decreases as r increases.
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How do you find the slant height of a cone?
Use the Pythagorean theorem: l² = r² + h² where r is radius and h is height. The slant height is the hypotenuse of the right triangle formed by radius and height.
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What is the relationship between a cone's volume and a cylinder's volume with the same radius and height?
A cone's volume is exactly 1/3 of a cylinder's volume: V_cone = 1/3 πr²h while V_cylinder = πr²h. You can fit exactly 3 cones inside a cylinder of the same dimensions.
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