Question

Find the breadth of the rectangle whose perimeter is 146 cm and whose length is?
40cm​

Answer 1

Answer:let the breadth be b.

length =40 cm

perimeter=146 cm

146=2 (40+b)

146=80+2b

146-80=2b

60=2b

2b=60

b=60/2

b=30 cm

HOPE THIS HELPS U.....

Step-by-step explanation:

Answer 2

Given,

length of the rectangle = 40 cm

perimeter = 146 cm

146 = 2 (l+b)

146 = 2 (40 +b)

146 = 80 +2b

146-80 = 2b

60 = 2b

60/2 = b

30 =b

therefore, b =30 cm

so, the breadth of the rectangle is 30 cm