Question

find the volume of metal used to make hemispherical utensils which has its external radius of 4 CM and internal radius 3 cm

I WILL MARK BRAINLIST THE BEST SOLUTION​

Answer 1

Answer:

77.4926188 cm³

Step-by-step explanation:

volume = 2/3 πR³-2/3 πr³

=2/3π(4³-3³)

=2/3π×37

=77.4926188 cm³

Answer 2

Step-by-step explanation:

Volume of a hemispheric bowl is 2/3 π × (R³ - r³)

Value of R = 4 cm and r = 3 cm

So,

Volume = 2/3 × 22/7 × (4³-3³)

= 2/3 × 22/7 × (64-27)

= 2/3 × 22/7 × 37

= 1628/21

= 77.52 (approx)

So volume of metal needed is 77.52 cm³