Question

27. Find the length of the wire
required to fence 2 rounds of a
rectangular park of length 25 m and
breadth 10 m.
50 m
140 m
100 cm​

Answer 1

Answer:

$\red\bigstar$ The length of wire required to fence the park twice  = 140m.

SOLUTION

Length of the rectangular park = 25m.

Breadth of the rectangular park = 10m.

$\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\multiput(0,0)(5,0){2}{\line(0,1){3}}\multiput(0,0)(0,3){2}{\line(1,0){5}}\put(0.03,0.02){\framebox(0.25,0.25)}\put(0.03,2.75){\framebox(0.25,0.25)}\put(4.74,2.75){\framebox(0.25,0.25)}\put(4.74,0.02){\framebox(0.25,0.25)}\multiput(2.1,-0.7)(0,4.2){2}{\sf\large 25m}\multiput(-1.4,1.4)(6.8,0){2}{\sf\large 10m}\put(-0.5,-0.4){\bf }\put(-0.5,3.2){\bf }\put(5.3,-0.4){\bf }\put(5.3,3.2){\bf }\end{picture}$

Perimeter of a rectangle = 2(l + b) , Where l is the length and b is the breadth of the rectangle.

Here,

l = 25m.

b = 10m.

Perimeter of the rectangular park = 2(l + b)

⇒ Perimeter of the rectangular park = 2(25 + 10)

⇒ Perimeter of the rectangular park = 2 × 35

⇒ Perimeter of the rectangular park = 70m.

$\boxed{\sf Length\: of\: wire \:required\: to\: fence \:the \; park \; twice = 2 * Perimeter \; of \;the\; park}$

$\red\dag$Length of wire required to fence the park twice = 2 × 70 = 140m.

Answer 2

Answer:

140 m

Step-by-step explanation:

Question-

Find the length of the wire required to fence 2 rounds of a rectangular park of length 25 m and

breadth 10 m.

ㅤ

Given-

• Length= 25 m
• Breadth= 10m

ㅤ

To Find-

• Perimeter.
• Length of wire required to fence with 2 rounds of the rectangular park.

ㅤ

Solution-

• Perimeter - to find the perimeter of the rectangular park, we'll use the below boxed formula and find the perimeter by calculating the measurements further.

$\underline{\boxed{\sf\purple{Perimeter_{(rectangle)} = 2(length+breadth)}}}$

ㅤㅤㅤㅤㅤ2(10+25)

ㅤㅤㅤㅤㅤ= 2×35

ㅤㅤㅤㅤㅤ= 70 m

ㅤ

• Length of wire required to fence with 2 rounds of the rectangular park- as we know that the perimeter of the rectangular park is the length of wire required to cover it once, and now to find find the length required for 2 rounds, we'll multiply the perimeter of the rectangular park by 2.

ㅤㅤㅤㅤㅤ2(perimeter)

ㅤㅤㅤㅤㅤ=2×70

ㅤㅤㅤㅤㅤ= 140 m

ㅤ

So, required length-

$\red\bigstar$$\tt{140\:m}$