
To find the volume of given sphere to the nearest tenth.

Answer to Problem 22PPS
1440 m3
Explanation of Solution
Given: The area of the great
Formula used:
Volume of a sphere =43πr3
And area of great circle of a sphere =πr2 , where r is the radius of the sphere.
Calculation:
πr2=49π⇒r2=49ππ⇒r2=49⇒r=7
Volume of given sphere,
=43πr3=43·π•(7)3=43×π×343=1436.75∼1440 (to nearest tenth)
Hence, volume of given sphere is 1440 m3.
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