Aptitude - Volume and Surface Area - Discussion
Discussion Forum : Volume and Surface Area - General Questions (Q.No. 1)
1.
A right triangle with sides 3 cm, 4 cm and 5 cm is rotated the side of 3 cm to form a cone. The volume of the cone so formed is:
12
cm3
cm315 cm3
cm316 cm3
cm320 cm3
cm3Answer: Option
Explanation:
Clearly, we have r = 3 cm and h = 4 cm.
 Volume = |
1 | r2h = |
 |
1 | x x 32 x 4 |
 cm3 |
= 12 cm3. |
| 3 | 3 |
Video Explanation: https://youtu.be/Njsid2mVwUY
Discussion:
77 comments Page 8 of 8.
Shinu said:
9 years ago
Pi factor should be included.
Rakshitha A. R said:
4 years ago
Please explain the answer.
(1)
Shubhsm said:
7 years ago
How deside 3 cm are base?
Lingaswamy said:
8 years ago
2πr=3.
r=3/2π.
h=4.
r=3/2π.
h=4.
Prasad said:
6 years ago
How, h = 4? Explain me.
(1)
Yasir arafat jubel said:
1 decade ago
Which mean r & h?
Ranjan said:
1 decade ago
I can't understand.
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