Find the volume and the surface area of a cuboid of length 30cm.,breadth 25 cm.and height 15 cm.

Find the volume and the surface area of a sphere of radius 5.6 cm.

Find the area of a square of length 7 cm.

Find the surface area of a cuboid formed by placing three cubes of side 5 cm on one another.

The surface area of a solid cylinder of radius 2.0 cm and height 10.0 cm is equal to ……. (mm)^2

A toy is in the shape of a right circular cylinder with a hemisphere on one end and a cone on the other. The radius and height of the cylindrical part are 5 cm and 13 cm respectively. The radii of the hemispherical and conical parts are the same as that of the cylindrical part. Find the volume and surface area of the toy if the total height of the toy is 30 cm.

How many regular pieces of wood of length 2m.breadth 2.5cm and thickness 4 cm.can be obtained from a log of wood of length 6m.,breadths 15cm and thickness 40 cm.?

Find the side of a cube whose surface area is 600 cm^2

The ratio of the total surface area to the lateral surface area of cylinder with base radius 80cm and height 20cm is __

The curve surface area of a right circular cone of height 15cm and base diameter 16 cm is_-

Find the power of a convex lens of focal length 25 cm.