Question

The perimeter of a rectangular field of breadth 23/2 cm is 30 cm. Find the length of the field.​

Answer 1

Step-by-step explanation:

Breadth of the rectangular paper, b=11

2

1

=

2

23

cm

Let length of the paper =l cm

Using formula, Perimeter of the rectangle =2(l+b)

It is given that perimeter is 30 cm

So,

2(l+

2

23

)=30

l+

2

23

=

2

30

=15

l=15−

2

23

l=

2

30−23

l=

2

7

cm

Answer 2

Answer:

7/2cm

Step-by-step explanation:

Given that

Perimeter = 30cm,Breadth=23/2cm

We know that P=2(L+B)

30=2(23/2+L)

30/2=23/2+L

30-23/2=L

L=7/2cm

Hope it's helpful