Question

the cost of fencing a square garden is 400 rupee at the rate of 1 rupee per metre . find the area of the garden in square metres.​

Answer 1

Step-by-step explanation:

cost of fencing =400rs

rate=1rsper

perimeter =cost/rate

perimeter=400/1

=400m

so we know that

perimeter odf square =4*side

400= 4*side

400/4=side

100m=side

si area of square =side*side

v. 100*100=10000m²

Answer 2

Cost of Fencing a garden = Rs 400

Cost of fencing garden per meter = Rs 1

$perimeter = \frac{total \: cost}{per \: meter \: cost} \\ = \frac{400}{1} \\ = 100m$

Perimeter of Square = 400m

4 × side = 400

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

Area of Square = Side × Side

= 100 × 100

= 10,000 sq. m