Question

Find the cost of fencing a rectangular park of length 12 cm & width 5 cm at the rate of Rs. 4 per cm ?

Answer 1

Length of rectangle = 12 cm
Width of rectangle = 5 cm
So, perimeter of rectangle =2 $\times$ (l+b) = 2 $\times$ (12 + 5) cm
= 34 cm
Cost of fencing = Rs. 4 per cm
Total cost of fencing = 34 × 4 = Rs. 136