Question

The diameter of the internal and exter
nal surfaces of a hollow hemispherical
shell are 6 cm. and 10 cm, respectively.
It is melted and recast into a solid eyl-
Inder of diameter 14 cm. Find the
height of the cylinder.​

Answer 1

Answer:

1.33 cm is the answer for you're question

Answer 2

Answer:

Internal Diameter = 6cm

External   Diameter = 10 cm

Internal radius = 3cm

External radius = 5 cm

So the Volume  of hemisphere

= (2/3)π(5³ - 3³) cm³

= 196π/3 cm³

= 196π/3 cm³Volume of solid cylinder = πr²h cm³

Diameter = 14 cm

So radius = 7 cm

Let  h = height of the cylinder

So by the given condition

π(7)²h  = 49πh

49πh  = 196π/3

49πh  = 196π/3h = 4/3

So the required height is 4/3 cm