Question

find the missing value P = 30 Length = 9 cm breadth = ?​

Answer 1

$\huge\underline\bold\color{red}\mathfrak{Answer}$

Perimeter = 2(l+b)

30 = 2(9 + b)

30/2 = 9 + b

15 = 9 + b

b = 15-9

b = 6 cm

Breadth = 6 cm

#WMK

Answer 2

Answer:

P=2(L+B)

30=2(9+B)

30÷2=9+B

15-9=B

6=B