Question

If costs Rs.1400 to fence a square field at Rs 3.50 per meter.Then the area of the field is​

Answer 1

Answer:

Step-by-step explanation:so,the

total cost =1400

Per m cost =3.50

So m=total cost /cost per m

=1400/3.5=400m

Perimeter of square= 4*side

4*side=400

Side=400/4=100m

Area =side*side

=100*100=10000 m^2

Answer 2

Answer:

★ Area of field = 10000m² ★

Step-by-step explanation:

Given:

• Total cost of fencing Rs 1400
• Cost of fencing per meter is Rs 3.50

To Find:

• Area of the square field

Solution:

→ Perimeter of Square field = Total cost of fencing / Cost of fencing per meter

∴ Perimeter = $\large{\sf {\frac{1</strong><strong>4</strong><strong>0</strong><strong>0</strong><strong>}{</strong><strong>3</strong><strong>.</strong><strong>5</strong><strong>0</strong><strong>}}}$ = 400m

† But perimeter of square = 4 x Side

$\small\implies{\sf }$ 400 = 4 x S

$\small\implies{\sf }$ $\large{\sf {\frac{400}{4}}}$ = s

$\small\implies{\sf }$ 100m = Side of square

★ Area of Square= (Side)²

$\small\implies{\sf }$ (100)² = 10000 m²