Question

(iv) The perimeter of the rectangle is 20 cm. If the length
of the rectangle is 6 cm, then what will be its breadth?​

Answer 1

Answer:

Step-by-step explanation:

Let breadth be "x"

Perimeter=2(l+b)

20 = 2(6+X)

20/2=6+X

10=6+X

10/6=X

You can know the answer if you do this

Answer 2

let the breadth be b

length is L or 6cm

perimeter= 20cm

= 2×(L+b)

B.T.P,

2×(6+b)= 20

12+ 2b= 20

2b=8

b=4

so, breadth is 4cm