Aptitude - Volume and Surface Area - Discussion
Discussion Forum : Volume and Surface Area - General Questions (Q.No. 13)
13.
What is the total surface area of a right circular cone of height 14 cm and base radius 7 cm?
Answer: Option
Explanation:
h = 14 cm, r = 7 cm.
So, l = (7)2 + (14)2 = 245 = 75 cm.
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= ![]() ![]() |
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= [154(5 + 1)] cm2 | ||||||||||
= (154 x 3.236) cm2 | ||||||||||
= 498.35 cm2. |
Discussion:
11 comments Page 2 of 2.
Sachin K C said:
4 years ago
l is the slant height of the cone
Formula to find slant height of the cone is √(r^2+h^2).
Formula to find slant height of the cone is √(r^2+h^2).
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