Question

what will be the answer. who tells me I will mark it brainliest .

Answer 1

Let r be the radius of the cone, a hemisphere, and a cylinder.

Let h be the height of the cone, a hemisphere, and a cylinder.

Given that All three have equal base and height.

h = r.

Now,

We know that Volume of cone = 1/3pir^2h

We know that Volume of hemisphere = 2/3pir^2h

We know that Volume of Cylinder = pir^2h..



1/3pir^2h: 2/3pir^2h:pir^2h

(1/3):(2/3):(1)

1:2:3.


Therefore the ratio of their volumes = 1:2:3.


Hope this helps!

Answer 2

Given, All the three have same base & Height.

Let Height = h , Radius = r

We Know,

Volume Of Cone =
$1 \div 3\pi {r}^{2} h$
Volume Of Hemisphere =
$2 \div 3\pi {r}^{2} h$
Volume Of Cylinder =
$\pi {r}^{2} h$
Therefore,
Ratio Of Cone : Hemisphere : Cylinder =

$1 \div 3\pi {r}^{2} h$
:
$2 \div 3\pi {r}^{2} h$
:
$\pi {r}^{2} h$

= 1/3 : 2/3 : 1

= 1 : 2 : 3

Hope This Helps !

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