A solid metallic sphere of radius x cm is melted and then drawn into 126 cones each of radius 3.5 cm and height 3 cm. There is no wastage of material in this process. What is the value of x?

A circular park whose diameter is 210 m has a 5 m wide path running around it(on the outside). What is the area ( in m²) of the path?

The area of a triangle is 24 square cm. If one side of it is 4 cm, what will be the height of the triangle?

If a side of a square is a, then what will be the area of the square on its diagonal?

If the height of a perpendicular cylinder is 10 cm and its curved surface area is 440 square cm, what is its radius?

The total surface area of a cube is 864 square cm. What will be its volume?

What will be the area of the curved surface of an elliptical cylinder whose height and diameter are 10 cm and 8 cm respectively?

The area covered by a square is 308 square cm. The length of the diagonal of the square is.