(i)The length of room = 5.5 m and width of the room = 4 m
The length of room with verandah
= 5.5 + 2.25 + 2.25 = 10 m
The width of room with verandah
= 4 + 2.25 + 2.25 = 8.5 m
Area of verandah
= Area of room with verandah – Area of room without verandah
= Area of ABCD – Area of EFGH
= (AB x AD) – (EF x EH)
= (10 x 8.5) – (5.5 x 4)
= 85 – 22
= 63 m2
(ii) The cost of cementing 1 m2 the floor of verandah = Rs 200
The cost of cementing 63 m2 the floor of verandah = 200 x 63 = Rs 12,600