Question

length of park 4m 28cm breadth= 12m 30 cm find the cost of fencing if it is â¹70 per m

Answer 1

$<b>Heya mate. ^_^. Solution below.$
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$<u>Your Question -</u>$

The length of a park is 4 m 28 cm and it's breadth is 12 m 30 cm. Find the cost of fencing if the rate of fencing is 70 Rs. per metre.

$<u>Solution - </u>$

Since it is not specified that what is the shape of the park, we assume that it is a rectangular park.


Then,

Length of rectangular park
= 4 m 28 cm
= 4 × 100 + 28 cm
= 400 + 28 cm
= 428 cm

Breadth of rectangular park
= 12 m 30 cm
= 12 × 100 + 30 cm
= 1200 × 30 cm
= 1230 cm


Now,

Perimeter of the rectangular park

= 2(l+b)
= 2(428+1230)
= 2 × 1658 cm
= 3316 cm

Now, 100 cm = 1 m. So,
1 cm = 1/100 m
3316 cm = 1×3316/100 m = 33.16 m.


Now, Fencing is surrounding the outer boundaries, i.e., the perimeter.

So, the area to be fenced = 33.16 m


Then,

Cost of fencing 1 m = 70 Rs.

So, cost of fencing 33.16 m
= 33.16 × 70
= 2321.2

Hence, the cost of fencing the park = 2321.2 Rs.
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Thank you. ;-)