a) The perimeter of a square room is 40 m.
(i) Find its length
(ii) Find the area of its floor.
(iii) Find the cost of carpeting the floor at Rs 70 per sq. metre.
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Answer:
i.
p=4l
40=4l
L=10m
ii.L= 10m
area = l^2
10^2
AREA = 100m^2
iii. rs = 70/m^2
cost = area * RS
= 100 * 70
= RS 7000
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