520,755 views
16 votes
16 votes
NEED HELP ASAP PLEASE

A cylinder has a height of 21 cm.
The diameter of the cylinder is 4/7 it’s height
Calculate the volume of the cylinder in terms of Pi

User Vishakvkt
by
2.8k points

2 Answers

18 votes
18 votes

Diameter:-

  • 4/7(21)=4(3)=12cm
  • Radius=r=6cm
  • Height=h=21cm

Now

Volume:-

  • πr²h
  • (3.14)(6)²(21)
  • 65.94(36)
  • 2373.84cm^3
User Jussi
by
2.7k points
13 votes
13 votes

volume of cylinder : 756π

  • height : 21 cm
  • diameter : (4/7 * 21) = 12 cm
  • radius : d/2 = 12/2 = 6 cm

find volume:


\sf volume \ of \ cylinder : \pi r^2h


\sf \hookrightarrow \pi (6)^2(21)


\sf \hookrightarrow \pi (36)(21)


\sf \hookrightarrow 756\pi

User Canica
by
3.1k points