(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 m^{2}

(ii) The cost of 1 m^{2} constructing the roads = Rs 110

The cost of 441 m^{2} constructing the roads

=Rs 110 x 441 =Rs 48,510

Therefore, the cost of constructing the roads = Rs 48,510