Question

perimeter of rectangle is 40 cm if the length is 6cm find the breath​

Answer 1

Answer:

2(l+b)=40

2(6+b)=40

6+b=40/2 =20

b=20-6=14

Answer 2

$\huge\underline\mathfrak{Solution}$

Perimeter of rectangle = 40 cm

Length = 6 cm

Breadth = ?

Perimeter of rectangle = 2(l + b)

40 = 2(6 + b)

40 = 12 + 2b

40 - 12 = 2b

28 = 2b

b = 28 ÷ 2

b = 14 cm