Math, asked by Haleema363, 1 year ago

On the same circular base and of the same height a cone, a hemisphere and a cylinder are formed. Find the ratio of their volumes of cone, hemisphere and cylinder.

plz do it fast

Answers

Answered by kin20
5
this is in the ninth class ncert refer to it...guys who need this answer see the comments for further explanation..

    Volume of cone = (1/3)πr2h
Volume of hemisphere = (2/3)πr3 
Volume of cylinder = πr2h
Given that cone, hemisphere and cylinder have equal base and same height
That is r = h
Volume of cone : Volume of hemisphere : Volume of cylinder  = (1/3)πr2h :  (2/3)πr3 : πr2h
= (1/3)πr3 :  (2/3)πr3 : πr3
= (1/3) : (2/3) : 1
= 1: 2: 3


hope it helps...
and I have even explained this in comments..

kin20: telling need to go step by step
kin20: 1/3πr^3. 2/3πr^3. and πr^3
kin20: take the lcm as 3
Haleema363: ooh k
Haleema363: got it
kin20: and hence it comes 1:2:3
Haleema363: thanks a lot!!
kin20: plz mark it as the brainliest
Haleema363: fr brainliest another user is needed
kin20: whenever someone does it plz do mark it....thanks
Answered by yadram219
1

Answer:

1:2:3

Step-by-step explanation:

  • Volume of cone =1/3
Attachments:
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