Question

The volume of a cylinder is 211.2 cm³ and its height is 4.2 cm, find the diameter of its base.​

Answer 1

Answer:

hlo mate!!!

Step-by-step explanation:

Given:

The volume of cylinder, V = 211.2 cm^3

The height of cylinder, h = 4.2cm

To find:

Diameter of its base

Solution:

Volume of the cylinder, V = pie r^2 h

pie r^2 h = 211.2

r^2 = 211.2 × 7/22÷4.2

r^2 = 16

r = 4 cm

Diameter, d = 2r

d = 2 (4)

d = 8cm

The diameter of the base of cylinder is 8cm

HOPE U LIKE IT !!!!✌✌

Answer 2

Step-by-step explanation:

given

the volume of CYCLINDER=211.2cm^3

the height of cyclinder=4.2cm

find

diameter of its base

so,

the volume of CYCLINDER=2πr^2h

211.2=2*22/7*r^2*4.2

r^2=211.2*7/2*22*4.2

r=4cm

hence:-

diameter of its base=2*4

=8cm

I hope it will be helpful