Question

a cylindrical pencil is sharped to produce a perfect cone at one end with no over all loss of its length .the dieter of the pencil is 1cm and length of the conical portion is 2cm.calculate the volume of the peels​

Answer 1

Answer:

volume of cone =1/3πr3

1/3(22/7)(0.5)³

0.1309

Answer 2

✫ Qᴜᴇsᴛɪᴏɴ :-

A cylindrical pencil is sharpened to produce a perfect cone at one end with no over all lose of it's length. The diameter of the pencil is 1 cm and the length of the conical portion is 2 cm. Calculate the volume of the peels.

✿ Gɪᴠᴇɴ :-

• Diameter of the pencil = 1 cm

• Radius of the pencil (r) = 0.5 cm

• Length of the conical portion (h) = 2 cm

✠ Tᴏ Fɪɴᴅ :-

• Volume of the peels

☯ Sᴏʟᴜᴛɪᴏɴ :-

Volume of peels = Volume of cylinder of length 2 cm and base radius 0.5 cm - volume of the cone formed by this cylinder

➳ πr²h - ⅓πr²h

➳ ⅔πr²h

➳ ⅔ × 355/113 × (0.5)² × 2 cm³

➳ 1.05 cm³

⛬ Volume of the peels is 1.05 cm³