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Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

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BuyFindarrow_forward

Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
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In Exercises 31 and 32, use the calculator value of π .

For a sphere whose radius has length 7cm, find the approximate

a) surface area.

b) volume.

To determine

To find:

The approximate surface area of the sphere.

Explanation

Approach:

The surface area of a sphere S = 4πr2, where r is the radius of the sphere.

Calculation:

Consider the sphere with radius r = 7cm.

Surface area of sphere S = 4·π·r2

4·π·r2=4·3.14·72

   

To determine

To find:

The approximate volume of the sphere.

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