Sphere surface

Express in square centimeters the surface of a sphere whose radius is equal to one-quarter of the radius of the cone. The diameter of the base of the cone is 20 cm.

Your answer:

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You need to know the following knowledge to solve this word math problem:

algebra

rearrange variables

solid geometry

sphere
surface area

planimetry

circle

Grade of the word problem

practice for 13 year olds
practice for 14 year olds

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