Question

The area of a rectangle is 65 - square metre. If its breadth is 5 m, find its length.
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Answer 1

Answer:

Step-by-step explanation:

area of a rectangle =  65 - square metre.

breadth =  5 m

length = area / length

           = 65/5

           = 13 m

length = 13  m

Answer 2

GivEn:

• Area of Rectangle = 65 m²

• Breadth of Rectangle = 5 m

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To find:

• Length of rectangle?

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Solution:

Let length of Rectangle be l m.

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

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We know that,

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$\star\;{\boxed{\sf{\purple{Area_{\;(rectangle)} = Length \times Breadth}}}}$

$:\implies\sf l \times 5 = 65$

$:\implies\sf l = \cancel{ \dfrac{65}{5}}$

$:\implies{\boxed{\sf{\pink{l = 13\;m}}}}\;\bigstar$

$\therefore\;{\underline{\sf{Hence,\;the\; length\;of\;rectangle\;is\; \bf{13\;m}.}}}$

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$\qquad\qquad\boxed{\underline{\underline{\bigstar \: \bf\:More\:to\:know\:\bigstar}}}$

• Perimeter of Rectangle = 2(l + b)

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• Area of square = side × side

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• Perimeter = 4 × side