20 circular plates each of radius 5 cm and thickenss 10 mm are placed one above another. What is the shape of solid made and find its height?

50 circular plates each of radius 7 cm and thickness 5 mm are placed one above another to form a solid right circular cylinder. Find the total surface area of the cylinder so formed.

25 circular plates, each of radius 10.5 cm and thickness 1.6 cm, are placed one above the other to form a solid circular cylinder. Find the curved surface area and the volume of the cylinder so formed.

25 circular plates, each of radius 10.5 cm and thickness 1.6 cm, are placed one above the other to form a solid circular cylinder. Find the curved surface area and the volume of the cylinder so formed.

50 circular plates each of radius 7 cm and 1 thickness 1/2 cm are placed one above another to form a solid right circular cylinder. Find the total surface area and volume of the cylinder so formed.

40 circular plates each of radius 7 cm and thickness 1.5 cm are placed one above the other to form a solid right circular cylindr. Find the total surface area and volume of cylinder so formed.

40 circular plates each of radius 7 cm and thickness 1.5 cm are placed one above the other to form a solid right circular cylindr. Find the total surface area and volume of cylinder so formed.

30 circular plantes, each of radius 14 cm and thickness 3 cm are placed one above the another to from a cylindrical solid . Find (i) the total surfce area. (ii) volume of the cylinder so formed.

30 circular plantes, each of radius 14 cm and thickness 3 cm are placed one above the another to from a cylindrical solid . Find (i) the total surfce area. (ii) volume of the cylinder so formed.

30 circular plants, each of radius 14 cm and thickness 3 cm are placed one above the another to from a cylindrical solid . Find (i) the total surface area. (ii) volume of the cylinder so formed.

50 circular plates,each of radius 7cm and thickness 0.5cm are placed one above the other to form a solid right circular cylinder. Find the total surface area and the volume of the cylinder so formed.