Solid cylinder of brass 8 m high and 4 m diameter is melted and recast

into a cone of diameter 3 m. Find the height of the cone.

Volume of cylinder = volume of cone

pi * r12 * h1 = 1/3 * pi * r22 * h2

pi * 22 * 8 = 1/3 * pi * (3/2)2 * h2

h2 = (4 * 8 * 3 * 4) / 9 = 42.67 cm 

  • -1

Sorry, its 42.67 m, not cm.

  • 1

thank u soooooo much..actlly i got the answer afta trying a loottsss..nyways thank u .. ;)

  • 2

u r welcome.......thumbs up plzzzz :)

  • 3

Height of cylinder = H =8m

Diameter of cylinder = D =4m

Radius of cylinder = R=2m

Diameter of cone =d = 3m

Radius of cone = r =3/2 m

VOLUME OF CYLINDER = vOLUME OF CONE

pie R2H = 1/3 pie r2h

2*2*8 = 1/3* 3/2 *3/2 *h

32 = 3/4* h

h = 32*4/3

h = 128/3

h = 42.66m

HOPE DIS HELP

THUMBZ UP PLZZZZZZZ

  • 12

Find the arithmetic progression whose third term is 14 and seventh term exceeds its fifth term by 10.

  • 1
What are you looking for?