Sir/Madam can you please solve question no.25 ong, 4 m wide, 3 m high and
the cost of paper is 1.40 per piece ; allow II rn2
for doors, etc., and assume that a whole number of
pieces has to be bought.
25. A cistern 6 m long, 4 m wide, contains water to a
depth of I m 25 cm, find the area ofthe wet surface.
26. Find the area and perimeter of the shape illustrated