Question

Q39) (a) Find the cost of fencing a square park of length 18m at the rate of ₹20
per m. (3)
(b) The area of a rectangular wall is 600 square metres. Find the length of
the wall, if its breadth is 30m.

Answer 1

Answer:

Perimeter of Square park=4×side

4×18=72m

Cost of fencing per m=Rs 20

Cost of fencing 72 m=72×20=Rs1440