Now consider a rectangle of perimeter 20cm.let one side be x find the length of other sides in terms of x"plz help me"thnx
x and (10-x) see my answer below.
To find the lengths of the other sides of the rectangle, we need to consider the perimeter.
The perimeter of a rectangle is the sum of all its sides. In this case, the perimeter is given as 20 cm.
Let's assume the length of one side is x cm.
Since a rectangle has opposite sides that are equal in length, we know that the other side will also be x cm.
Let's denote the length of the other side as y cm.
So, the perimeter can be expressed as:
Perimeter = x + y + x + y
Since the perimeter is given as 20 cm, we can write the equation:
20 = 2x + 2y
Simplifying the equation, we have:
10 = x + y
Now, given that one side is x, we want to express the length of the other side (y) in terms of x.
We can rearrange the equation as:
y = 10 - x
Therefore, the length of the other sides in terms of x is given by y = 10 - x.
So, if you substitute any value for x, you can find the length of the other sides using the equation y = 10 - x.