Question

S.
Two solids of right cylindrical shape are 49 cm and 35 cm high and their base
diameters are 16 cm, 14 cm respectively. Both are melted and moulded into a
single cylinder, 56 cm high. Find its base diameter.
The volume of a metallic cylindrical pipe is 748 cm. Its length is 14 cm and its
external radius is 9 cm. Find its thickness.
10. The volume of a cylinder is 150t cu.cm and its height is 6 cm. Find the areas of its
total surface and lateral (curved) surface.
11. The curved surface area of a cylindrical pillar is 264 m and its volume is 924 m.
Find the diameter and the height of the pillar.
APES​

Answer 1

Answer:

Very hard question it is amazinh