As part of 'Earth Day' celebrations an inter class poster making competition was arranged between nine sections of Class-VIll. Each section was provided a sheet measuring 75 cm x 40 cm for making the poster.(a) Find the total area of sheet provided to the students. Express the area in exponential form

A poster of size 10cm by 8cm is pasted on a sheet of cardboard such that there is a margin of width 1.75cm along each side of the poster. Find The total area of the margin The cost of the cardboard used at the rate of Re 0.60 per cm^(2)

A poster of size 10 cm by 8 cm is pasted on a sheet of cardboard such that there is a margin of width 1.75 cm along each side of the poster. Find (a) The total area of the margin (b) The cost of the cardboard used at the rate of Re 0.60 per c m^2

A NCC camp for a weak was organised for Class IX students. The accomodation was planned in hemispherical tents each of radius 2.8 cm. obtain the area of the canvase required for making the tent. Also, find the cost of tent Rs. 300 per m^2 . In what way camping is helpful for the development of the students?

An open metal bucket is in the shape of a frustum of a cone, mounted on a hollow cylindrical base made of the same metallic sheet. The diameters of the two circular ends of the bucket are 45 cm and 25 cm, the total vertical height of the bucket is 40 cm and that of the cylindrical base is 6 cm. Find the area of the metallic sheet used to make the bucket, where we do not take into account the handle of the bucket. Also, find the volume of water the bucket can hold.

An open metal bucket is in the shape of a frustum of a cone, mounted on a hollow cylindrical base made of the same metallic sheet. The diameters of the two circular ends of the bucket are 45 cm and 25 cm, the total vertical height of the bucket is 40cm and that of the cylindrical base is 6cm. Find the area of the metallic sheet used to make the bucket, where we do not take into account the handle of the bucket. Also, find the volume of water the bucket can hold. (Take π=22/7)

An open metal bucket is in the shape of a frustum of a cone, mounted on a hollow cylindrical base made of the same metallic sheet (see Fig. 13.23). The diameters of die two circular ends of the bucket are 45 cm and 25 cm, the total vertical height of the bucket is 40 cm and that of the cylindrical base is 6 cm. Find the area of the metallic sheet used to make the bucket, where we do not take into account the handle of the bucket. Also, Find the volume of water the bucket can hold. (Take pi=22/7 ).

An open metal bucket is in the shape of a frustum of a cone, mounted on a hollow cylindrical base made of the same metallic sheet. The diameters of the two circular ends of the bucket are 45 cm and 25 cm, the total vertical height of the bucket is 40 cm and that of the cylindrical base is 6 cm. Find the area of the metallic sheet used to make the bucket, where we do not take into account the handle of the bucket. Also, find the volume of water the bucket can hold.