Question

The perimeter of a rectangle is 20 cm ,if the length of rectangle is 6 cm ,then it's breadth will be

Answer 1

Answer:

PERIMETER = (LENGTH ×BREADTH)

20 =(6×X)

X= 20/6

=3.33

Step-by-step explanation:

Answer 2

Given,

The perimeter of a rectangle (P) = 20 cm

Length of the rectangle (l) = 6 cm.

To find,

The breadth of rectangle (b).

Solution,

The breadth of the rectangle will be 4 cm.

We can easily solve this problem by following the given steps.

Now, we know that the perimeter is the sum of all the sides. The perimeter of a rectangle is 2(l+b) where l and b are the length and breadth of a rectangle.

The perimeter of a rectangle = 20 cm

2(l +b) = 20

2 (6+b) = 20 [ Putting the value of the length]

(6+b) = 20/2 [ 2 will be in the divide on R.H.S. as it was in the multiplication on L.H.S]

6+b = 10

b = 10-6 ( Moving 6 from L.H.S. to R.H.S. will result in the change of sign from plus to minus.)

b = 4 cm

Hence, the breadth of the rectangle will be 4 cm.

( The measurement was given in centimetres. Hence, the unit of breadth will also be centimetres.)