Question

the area of a rectangular field is 780 square metre find the length of the boundary of the field if the breadth of the field is 12 m​

Answer 1

area of rectangle =l×b

780. =l×12

780/12=l

65cm=l

here's ur ans

Answer 2

$\textbf{\underline{\underline{Answer :-}}}$

The Length is 65 m

$\textbf{\underline{\underline{Explanation :-}}}$

Given :

The area of the Rectangle = 780 sq.m

Breadth of the Rectangle = 12 m

To find :

The Length of the Rectangle

Solution :

As we know :

${\boxed{\tt{Area = Length \times Breadth}}}$

Consider the Length as x

${\tt{\implies{780 = x \times 12}}}$

${\tt{\implies{780 = 12x}}}$

${\tt{\implies{x = \dfrac{780}{12} }}}$

${\tt{\implies{x = 65}}}$

$\boxed{\bigstar \: {\tt{Length = 65 \: m}}}$

$\therefore$ The Length is 65 m

$\textbf{\underline{\underline{Verification :-}}}$

${\tt{\implies{780 = 65\times 12}}}$

${\tt{\implies{780 = 780}}}$

Here, When we placed the value of x (65) we got the required answer 780.

$\therefore$ The Length is 65 m

$\star$ About Rectangle :

• A rectangle is a quadrilateral with two pairs of parallel lines.

• The opposite sides of rectangle are equal and each angle of a rectangle is a right angle

• Area of Rectangle = Length × Breadth

• Perimeter of Rectangle = 2(Length + Breadth)