# Geometry

What is the area of a circle formed by the intersection of a plane that is 24 mm from the center of a sphere whose radius is 30 mm.

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1. Area=Pi*r^2 where
r^2=30^2-24^2
Draw an axial section of the sphere perpendicular to the plane

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posted by Mgraph
2. Is my answer 324 mm

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posted by Mary
3. did you forget the π ?

area = πr^2 = 18^2π = 324π

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posted by Reiny
4. mm^2

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posted by Mgraph

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