Question

Please solve question no. 12 ,13

Answer 1

We know that the law for taking the area of the
walls is-2 (lh + bh)+lb

therefore,2 (6×3.5 + 3×3.5)+6×3
2 (21+10.5)+18
2 (31.5)+ 18
63+18
81 m square units
therefor cost-81 ×650
Rs 52650