Question

10 circular plates, each of radius 14 cm and thickness 3cm are placed one above
the
another to form a solid.

Find the volume of the solid​

Answer 1

Answer:

Given, radius 14 cm, thickness =3 cm, number of plates =10

Therefore, height of cylinder will be 3×10=30 cm

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

2

Therefore, total surface area =2π(14)(14+(30))=3870.44214922

cm

2