A solid iron pole consists of a cylinder of height 220 cm and base diameter 24 cm, which is surmounted by another cylinder of height 60 cm and radius 8 cm. Find the mass of the pole, given that of iron has approximately 8 g mass. (Use π = 3.14)

**Solution:**

Radius of big cylinder **cm**

Radius of small cylinder **cm**

Height of big cylinder **cm**

Height of small cylinder **cm**

Volume of big cylinder

Volume of small cylinder

** **

**Volume of Pole =Volume of Big Cylinder + Volume of small Cylinder = 99475.2+12057.6 = 111532.8 **

1 of iron =8 g

**111532.8** of iron g =** 892.26**2 **kg**