(i)Here, PQ = 3 m and PS = 60 m, EH
= 3 m and EF = 90 m and KL = 3 m and KN = 3 m Area of roads
= Area of PQRS + Area of EFGH – Area of KLMN
[∵ KLMN is taken twice, which is to besubtracted]
= PS x PQ + EF x EH – KL x KN
= (60 x 3) + (90 x 3) – (3 x 3)
= 180 + 270 – 9
= 441 m2
(ii) The cost of 1 m2 constructing the roads = Rs 110
The cost of 441 m2 constructing the roads
=Rs 110 x 441 =Rs 48,510
Therefore, the cost of constructing the roads = Rs 48,510