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A sphere of diameter D inches is cut by a plane which passes through its center. Find the area of the cross-section, leaving the answer in terms of π.

Respuesta :

Answer:

0.25D^2 π in^2.

Step-by-step explanation:

The cross section is a circle of diameter D inches, so its radius is 0.5D inches.

The area of cross section is  πr^2

= (0.5D)^2 π

= 0.25D^2 π in^2.  

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