when 5 is substracted from length and breadth of a rectangle then perimeter becomes 26 what the mathematical from above statement
Answers
Step-by-step explanation:
Given:-
5 is substracted from length and breadth of a rectangle then perimeter becomes 26.
To find:-
what the mathematical from above statement
Solution:-
Let the length of the rectangle be l units
Let the Breadth of the rectangle be b units
We know that Perimeter of a rectangle
= 2(l+b) units
If 5 is subtracted from both length and breadth of the rectangle then they becomes
Length of the new rectangle = (l-5) units
Breadth of the new rectangle =(b-5) units
Perimeter of the new rectangle
= 2[(l-5) + (b-5)] units
=> 2(l-5+b-5) units
=> 2(l+b-10) units
According to the given problem
Perimeter of the new rectangle = 26 units
=> 2(l+b-10) units = 26 units
=> 2(l+b-10) = 26
=> l+b-10 = 26/2
=> l+b-10 = 13
=> l+b = 13+10
=> l+b = 23
=> l+b -23=0
Answer:-
The required mathematical equation for the given problem is l+b -23=0
Used formula:-
- Perimeter of a rectangle = 2(l+b) units
- l = length of the rectangle
- b= breadth of the rectangle