Question

Find the perimeter of a rectangle whose length and breadth are 150 cm and 1 m respectively.
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Answer 1

Length = 1 = 150 cm

Breadth = 1 m = 100 cm

Perimeter of rectangle 2 x (Length + Breadth)

= 2 x (150 + 100)

= 2 x (250)

= 500 cm or 5m

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Answer 2

Given :

• Length of the rectangle → 150 cm
• Breadth of the rectangle → 1 m.

To find:

• Find the perimeter of the rectangle.

Diagram :

$\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\multiput(0,0)(5,0){2}{\line(0,1){3}}\multiput(0,0)(0,3){2}{\line(1,0){5}}\put(0.03,0.02){\framebox(0.25,0.25)}\put(0.03,2.75){\framebox(0.25,0.25)}\put(4.74,2.75){\framebox(0.25,0.25)}\put(4.74,0.02){\framebox(0.25,0.25)}\multiput(2.1,-0.7)(0,4.2){2}{\sf\large 150 cm}\multiput(-1.4,1.4)(6.8,0){2}{\sf\large 100 cm}\put(-0.5,-0.4){\bf A}\put(-0.5,3.2){\bf D}\put(5.3,-0.4){\bf B}\put(5.3,3.2){\bf C}\end{picture}$

Solution :

As we know the formula for perimeter of rectangle.

Perimeter → 2( l + b )

Here,

" l " → Length of the rectangle.

" b " → Breadth of the rectangle.

Now, simply substituting the values in it, we get

Before that , converting the given breadth into cm

• ⠀⠀⠀⠀⠀⠀1m → 100 cm

Now,

$\implies$2 × ( 150 + 100 )

$\implies$2 × 250

$\implies$500 cm

Therefore , the perimeter is 500 cm