Question

a solid toy is in the form of a cylinder with hemisphere at one end and cone at the other their common diameter is 4.2cm and height of cylinder and cone is 12cm and 7cm find TSA and volume of toy

Answer 1

Do by your own otjerwise yky eull koez

Answer 2

Answer:

Solution :-

Height of the conical portion = 7 cm and height of the cylindrical portion = 12 cm

Radius = Diameter/2

= 4.2/2

= 2.1 cm

Volume of the solid toy = Volume of the conical portion + Volume of the cylindrical portion + Volume of the hemispherical portion

⇒1/3πr²h + πr²h + 2/3πr³

⇒ (1/3*22/7*2.1*2.1*7) + (22/7*2.1*2.1*12) + 2/3*22/7*2.1*2.1*2.1

⇒ 679.14/21 + 1164.24/7 + 407.484/21 

⇒ (32.14 cu cm) + (166.32 cu cm) + (19.404 cu cm)

⇒ 217.864 cu cm

Answer.