Question

the perimeter of a rectangular plot is 90 m .if the breadth of the plot is 15 m find its length .​

Answer 1

☆ Solution ☆

Given :-

• The perimeter of a rectangular plot is 90 m.
• The breadth of the rectangular plot is 15 m .

To Find :-

• The length of the rectangular plot.

Step-by-Step-Explaination :-

As we know that :-

Perimeter of rectangle = 2 ( l + b )

Putting the respective value,

2 ( l + 15 ) = 90

l + 15 = 90/2

l + 15 = 45

l = 45 - 15

l = 30

Hence,

The length of the rectangular plot is 30 m .

Answer 2

Question:-

The perimeter of a rectangular plot is 90 m .if the breadth of the plot is 15 m find its length .

Answer:-

• The length of rectangle is 30 m

To find:-

• Length of rectangle

Solution:-

• Perimeter of rectangle = 90 m
• Breadth of rectangle = 15 m

As we know,

$\large{ \boxed{ \mathfrak{ \red{ perimeter = 2(l + b)}}}}$

Where,

• l = length of rectangle
• b = breadth of rectangle

According to question,

$\large{ \rm : \implies \: \: \: \: \: \: \: \: \: 2(15 + l) = 90}$

$\large{ \rm : \implies \: \: \: \: \: \: \: \: \: 15 + l= \frac{90}{2} }$

$\large{ \rm : \implies \: \: \: \: \: \: \: \: \: 15 + l= 45}$

$\large{ \rm : \implies \: \: \: \: \: \: \: \: \: l = 45 - 15}$

$\large{ \rm : \implies \: \: \: \: \: \: \: \: \: l = 30}$

Hence,

The length of rectangle is 30 m