If the perimeter of a rectangle is 46 cm and the area is 132 square cm, then what are the dimensions of the rectangle?
1 Answer
May 16, 2018
Length =
Breadth =
Explanation:
You can use two variables and then simultaneous equations, or use one variable to define the length and the breadth.
I prefer to use one variable because we know the relationship between the length and the breadth,
If
If we let the breadth be
The area is
To factorise, find factors of
These are the required dimensions of the rectangle,
Check: