Answer: 36 centimeters.
Step-by-step explanation:
Given : Area of a rectangular poster = 504 square centimeters.
The width of the poster is 14 centimeters.
We know that area of rectangle :-
[tex]\text{Area= length x width }[/tex]
Let l be the length of the poster .
Substitute the above values into this , we get
[tex]504=\text{l}\times 14[/tex]
i.e. [tex]504=14\text{l}[/tex]
Divide both sides bby 14 , we get
[tex]l=36[/tex]
Hence, the length of the poster = 36 centimeters.
