Question

3. The area of a rectangular field is 72 sq.m. If the length of the field is
9m, what is its breadth and perimeter of the field?​

Answer 1

Answer:

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

where l and b are the length and breadth of the rectangular field

⇒200=2(l+40)

⇒l+40=100

⇒l=60 m

Area of the rectangular field =lb

=60×40

=2400 m

2

Answer 2

Given :

• Area of Rectangular field is 72 m²
• Length of Field is 9 m .

To Find :

• Breadth and Perimeter of Field.

Solution :

For Breadth :

Using Formula :

$\longmapsto\tt\boxed{Area\:of\:Rectangle=length\times{breadth}}$

Putting Values :

$\longmapsto\tt{70=9\times{b}}$

$\longmapsto\tt{\cancel\dfrac{72}{9}=b}$

$\longmapsto\tt\bf{8=b}$

So , The Breadth of Field is 8 m .

Now ,

$\longmapsto\tt{Length=9\:m}$

$\longmapsto\tt{Breadth=8\:m}$

Using Formula :

$\longmapsto\tt\boxed{Perimeter\:of\:Rectangle=2(l+b)}$

Putting Values :

$\longmapsto\tt{2(9+8)}$

$\longmapsto\tt{2(17)}$

$\longmapsto\tt\bf{34\:m}$

So , The Perimeter of Rectangle is 34 m ....