The curved surface area of a cylindrical pillar is 264m 2 and its volu
| The curved surface area of a cylindrical pillar is 264m2 and its volume is 924m3. Find the ratio of its curved surface area to the area of the base (
).
).
A. 7:12
B. 12:7
C. 5:6
D. 6:5
Right Answer is: B
SOLUTION
Curved surface area of the cylindrical pillar = 
= 264 m2
Volume of the cylindrical pillar = 
= 924m3.
r = 7 m
Area of base = 
= (22/7) x7 x 7 = 154m2
the ratio of its curved surface area to the area of the base = 264:154 = 12:7
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The curved surface area of a cylindrical pillar is 264m 2 and its volu