Answer:
The dimensiom of rectangle is 9cm by 3cm
Step-by-step explanation:
Let width = x
length = 6 + x
Area = length × width
x(x+6) = 27
x²+6x = 27
x²+6x-27 = 0
(x+9)(x-3) = 0 (factorise)
x = 3 & x = -9(rej) (solve)
when x=3,
length = 6 + 3
= 9cm
width = 3cm