Question

In a party 60 circular plates each of radius 14cm and thickness 0.5cm are placed one above the other to form a right circular cylinder. What is the volume of each plate​

Answer 1

Step-by-step explanation:

Given, radius 14 cm, thickness =3 cm, number of plates =30

Therefore, height of cylinder will be 3×30=90 cm

We know, total surface area of cylinder =2πr(r+h) cm

2

Therefore, total surface area =2π(14)(14+(90))=9152 cm

2