What is the surface area of a cone of base diameter 30 centimetres and height 40 centimetres?

What is the area of the curved surface of a cylinder of base radius 4 centimetres and. height 10 centimetres?

The base diameter of a metallic cylinder is 18 centimetres and its helght 24 centimetres. It is melted and recast into cylinders of base diameter 12 centimetres and height 6 centimetres. How many such small cylinders are got?

What is the volume of a cylinder of base radius 4 centimetres and height 20 centimetres?

What is the area of the curved surface a cone of base radius 12 centimetres and slant height 25 centimetres?

Whatis the area of the curved surface of a cone of base radius 12 centimetres and slant Height 25 centimetres?

What is the central angle of the sector to be used to make a cone of base radius sqrt2 centimetres and height 4 centimetres?

What is the surface area of a square pyramid of base perimeter 64 centimetres and volume 1280 cubic centimetres?

The base radius and height of a solid metal cylinder are 12 centimetres and 20 centimeters. By melting it and recasting, how many cones of baseradius 4 centimetres and height 5 centimetres can be made?

What is the central angle of the sector to be used to make a cone of base. radius 10 centimetres and slant height 25 centimétres?

A toy in the shape of a square pyramid of base edge 16 centimetres and slant height 10 centimetres. What is the total cost of painting 500 such toys, at 80 rupees per square metre?