Question

11. One side of a square field is 62 m. Find the cost of raising a lawn on the field at the rate of
*5.50 per square metre.
​

Answer 1

Given

$\bold{Length \ of \ one \ side \ of \ a \ square} = 62 \ m$

SOMETHING YOU NEED TO KNOW

$\bold{Area \ of \ a \ square} = Side \times Side\\\bold{Perimeter \ of \ a \ square} = 4 \times Side$

$\bold{Area \ of \ the \ square \ field}$

$= 62 \times 62$

$= \underline{\underline{ 3844 \ m^{2} }}$

$\bold{Cost \ per \ square \ metre} = 5.50 \ Rs.$

$\bold{Total \ cost}$

$=3844 \times 5.50$

$=Rs. \ 21142$

$\boxed{\boxed{\bold{Therefore, \ the \ total \ cost \ is \ 21142 \ Rupees}}}$

                                                       

Answer 2

Given:

• One side of a square field = 62 m
• Cost of raising lawn for 1 m² = ₹5.50

To find:

1. Total cost of raising the lawn = ?

Formula used:

$\boxed{ \sf{area \: of \: square = (Side) {}^{2} }}$

Method:

Area of square = Side²

↦Area = (62)²

→ Area = 62m × 62m

⇒★ Area = 3844 m² ★

Cost of raising lawn for 1 m² = ₹5.50

Cost of raising lawn for 3844 m²

= 3844 × 5.50

= ₹ 21142

Therefore the Total cost of raising lawn = ₹ 21142

Additional information:

• For finding the cost for raising lawn, we need to find area (as in the above answer)
• For finding the cost of raising fence, we need to find perimeter
• Formula used for perimeter of a square is 4 × Side