Question

The perimeter of a rectangle is 20 CM the length of the rectangle is 7 cm what is its breadth

Answer 1

Answer:

3cm

Step-by-step explanation:

perimeter is equals to 2(l+b)

so 20=2(7+b)

10=7+b

b=10-7

b=3cm

Answer 2

Given:-

Perimeter of Rectangle=20cm

Length of Rectangle=7cm

Find:-

Breath=?

Step by step solving:-

Perimeter of Rectangle=2(L+B)

20=2(7+B)

Transporting 2 on L.H.S.

20/2=7+B

10=7+B

Transporting 7 on L.H.S.

10-7=B

B=3cm

Therefore, the breadth of the rectangle is 3cm.