Question

The Perimeter of the rectangle is 20 cm and the breadth of the rectangle is 10 cm. Radha want to Fence all around it, the cost of fencing is Rs 30 Per meter. Find the total cost of fencing the wire and also find the area of the rectangle.​

Answer 1

Answer:

cost of fencing =

₹600

area of rectangle =

9900cm²

Step-by-step explanation:

given:-

perimeter = 20 m

breadth = 10 cm

to find:-

cost of fencing at the rate ₹30 per meter. __(1)

area of rectangle.___(2)

(1)

fencing = perimeter = 20 m

cost of fencing 1m = ₹30

cost of fencing 20m = ₹30×20

= ₹600

(2)

to find the area of rectangle, we will first find the length of rectangle

2(l+b) = 20 m

2(l+b) = 20×100 cm

2(l+10 cm) = 2000 cm

l+10 cm = 2000÷2 cm

l+10 cm = 1000 cm

l = 1000-10 cm

l = 990 cm

area = l×b = 990×10 cm² =

9900 cm²

there was a minor mistake that perimeter was in cm but it should be in meter.

Because rate of fencing is in meter.

hope it helps.