if perimeter =20cm,length=6cm then what is its breath

breadth = (20-(6*2))/2

= 4 cm

To find the breadth of a rectangle, you need to know its perimeter and length.

The formula to calculate the perimeter of a rectangle is:

Perimeter = 2 x (Length + Breadth)

Given that the perimeter is 20cm and the length is 6cm, we can substitute these values into the formula:

20cm = 2 x (6cm + Breadth)

Now, let's simplify the equation:

20cm = 12cm + 2 x Breadth

Subtract 12cm from both sides of the equation:

20cm - 12cm = 2 x Breadth

8cm = 2 x Breadth

Next, divide both sides by 2 to isolate the breadth:

8cm / 2 = Breadth

4cm = Breadth

Therefore, the breadth of the rectangle is 4cm.