Question

The cost of fencing a square garden is rs 400 at the rate of rs 1 per metre.find the area of the garden in square metres?

Answer 1

area of square is 100×100 =10000 m²..

Answer 2

Cost of Fencing a garden = Rs 400

Cost of fencing garden per meter = Rs 1

$perimeter \: = \frac{total \: cost}{per \: meter \: cost} \\ = \frac{400}{1} \\ = 400m$

Perimeter of Square = 400m

4 × side = 400

$side = \frac{400}{4} \\ side= 100m$

Area of Square = Side × Side

= 100 × 100

= 10,000 sq. m