Question

21. The area of a square garden is equal to the area
of a rectangular plot of length 160 m and width
40 m. Calculate the cost of fencing the square
garden at 12 per m.​

Answer 1

Answer:

side of square plot is 80 m

so are is side × side

80m × 80m

=6400msquare

which is same as area of rectangle plot

160m × 40 m

6400 msquare

perimeter of square park is 4 ×side

4×80m

320 m

cost for fencing 1m is rs12

cost for fencing 320m is 320×12

is = rs 3840 ans.