Question

the area of a rectangular field is 480 square metre. and its breadth is 20 m find the cost of fencing the field at ₹4.75 per metre.​

Answer 1

Step-by-step explanation:

length of field =480/20

=24meter

perimeter =2(24+20)

=2×(44)

=88m

cost of fencing=88×4.75

=418 rupee

Answer 2

Answer:

₹418

Step-by-step explanation:

Formula for Area of a rectangle → $l$×$b$

Then formula for length → $A$ ÷ $b$

The length of the rectangular field =

480m² ÷ 20 m

= 24 m

Length of fence while fencing the field = boundary of the field

formula for finding boundary of a rectangle = 2($l$+$b$)

Boundary of the field =

2(20+24)

= 2 × 44

= 88 m

length of fence used = 88 m

Cost of fencing per metre = ₹4.75

Cost of fencing the whole boundary of the field =

₹4.75 × 88 m

= ₹418

Cost of fencing the whole boundary of the field = ₹418

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