Aptitude - Volume and Surface Area - Discussion

Discussion Forum : Volume and Surface Area - General Questions (Q.No. 1)

Volume and Surface Area

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:

cm³

Answer: 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

Discussion:

77 comments Page 6 of 8.

Pankaj Dhariwal said: 10 years ago

I can't understand. In this question where we use 5cm. Please explain.

Kirti said: 9 years ago

If we rotate 3cm side won't 3cm be the circumference of its base.

Sitara said: 8 years ago

Because we are rotating 3cm side which is base to form a cirlce.

Ayo said: 8 years ago

I am not getting it. Please, anyone help me to understand it.

Sameer said: 8 years ago

I could not understand yer, please help me by explaining it.

Lia US said: 8 years ago

Can anyone please explain me this? I didn't understand.

Sakshi said: 1 decade ago

If it is rotated about 3 cm. How could radius be 3 cm?

Tanisha jha said: 7 years ago

I can't understand please help me to understand it.

Mohit kumar chaudhary said: 7 years ago

I am not getting the answer. Please explain to me.

(2)

Pavithra said: 5 years ago

If it is rotated along 3 then won't it be height?

(2)

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