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Surface Area and Volume of Spheres

This topic covers the concept of volume and surface area of the spheres. How to find the surface area and volume of composite figures and what is the effect of change of dimensions on the same are also covered.
Practice Question
1

Find the surface area of a sphere with radius 9 ft. (Use 3.14 for ∏)

 
Possible Answers
Your Answer
Correct Answer
A)

1017.36 ft2

B)

1801.26 ft2
C)

1878.30 ft2
D)

1821.16 ft2
Practice Question
2

Find the surface area of a sphere with diameter 3y meters. (Use 3.14 for ∏)

 
Possible Answers
Your Answer
Correct Answer
A)

38.22 y2 m2

B)

28.26 y2 m2
C)

48.24 y2 m2
D)

28.26 y m2
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