A triangle shaped glass with vertices at `A(-5, -4), B(1, 6) and C(7, -4)` has to be painted. If one bucket of paint covers 6 square feet, how many buckets of paint will be required paint is applied.

Jane has to point a cylindrical column that is 14 feet high and that has a circular base with a radius of 3 feet. If one bucket of paint will cover 10pi square feet, how many whole buckets does jane need to buy in order to paint the column, including the top and bottom?

Border of a square-shaped frame which is 16-cm long needs to be painted. If the cost of painting 1 m of border is rupees 4, how much would it cost to paint the entire border of the frame ?

It takes 21 minutes for 5 people to paint 7 walls.How many minutes does it take 3 people to paint 5 walls?

Ravi can paint (3)/(7) of a house in one day. If he continues working at this rate, how many days will he take to paint the whole house?

A grain silo, shown below, is in the shape of cylinder with a half sphere on top . The radius of the base of the cylinder is 10 feet , and the height of the cylindrical part is 60 feet, as marked The farmer who owns the silo plans to apply a coat of paint to the cylindrical exterior . This does not include the spherical top . A formula for the lateral surface area S of a cylinder with radius r and height h is S=2pirh . if one can of paint covers 300 square feet of surface, what is the least number of cans that the farmer must buy to complete the job ?

Walls (excluding their roofs and floors) of 5 identical rooms having length, breadth and height 6 m, 4 m and 2.5 m respectively are to be painted. Paints are available only in cans of 1 L and one litre of paint can be used for painting 20 square metres. What is the number of cans required for painting ?