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37 votes
37 votes
A family purchases a Light sphere to be used out on their patio. The diameter of the sphere is 20 inches. What is the volume of the light sphere? Use 3.14 for pi. Enter your answer as a decimal and round only your final answer to the nearest hundredth.

Two people had different answers but had 5 stars. So can someone explain how to solve this question correctly. Thank you in advance

User Drewish
by
3.0k points

1 Answer

18 votes
18 votes

Answer:

The answer is 4188.79 ft^3.

Explanation:

The formula is V=4/3πr^3. The radius is 10, turning that into V=4/3π10^3. 10^3 is 1000, and 1000 times 4/3 is 1333.33. 1333.33 times 3.14 (or π) is equal to 4188.79 ft ^3 rounded to the nearest 100th. I hope this helps! :)

User Jcaliz
by
2.9k points
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