Question

5. The breadth of a rectangular park is of 48 m 13 km 72 mm
for fencing it, find the length of the park.​

Answer 1

Correct question:

The breadth of rectangular park is 48m. If 3km 72m long wire is required for fencing it, find the length of park.

Given:

Breadth of rectangular park = 48m

Perimeter of rectangular park = 3km 72m

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$ = 3072m

To find:

Length of rectangular park

Formula used:

$\boxed{\sf{Perimeter\:of\:rectangle=2(Length+Breadth)}}$

Solution:

Let length of rectangular park = $\ell$

$\sf{Perimeter\:of\:rectangle=2(Length+Breadth)}$

$\sf{3072=2(\ell +48)}$

$\sf{1536=\ell +48}$

$\sf{\ell = 1536 - 48}$

$\ell =$$\sf{\red{1488m}}$