Question

Find vo
the radius of the circular ba
(i) r = 5 cm, h = 21 cm​

Answer 1

Answer:

you question is incomplete

Answer 2

Answer:

This is the answer

Step-by-step explanation:

9th

Maths

Surface Areas and Volumes

Surface Area of Spheres

The volume of a cone is equ...

MATHS

The volume of a cone is equal to that of a sphere. If the diameter of the base of cone is equal to the diameter of the sphere, what is the ratio of the height of the cone to the diameter of the sphere

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ANSWER

Let R be a radius of a sphere, h and r are height and radius of cone respectively.

Given: Diameter of base of cone= Diameter of sphere

d=D⇒ r=R

Now volumes are equal,

∴

3

1

πr

2

h=

3

4

πR

3

Cancelling 3,π,r&R

∴h=4R

⇒h=4

2

D

⇒h=2D

⇒

D

h

=2

Thus, h:D=2:1