Question

if the length and breadth of a rectangle are 9 cm and x cm and the perimeter
is 28 cm, find the value of x.

Answer 1

Answer:

5

Step-by-step explanation:

l=9 cm

b=x cm

P=2(l+b)=28

therefore,

2(9+x)=28

9+x=28/2

9+x=14

x=14-9

x=5

Answer 2

Answer:

5

Step-by-step explanation:

l=9cm

b=x cm

p=2(l+b)=28

2(9+x)=28

9+x 28/2

9+x=14

x=14-9

x=5