Answer:
The expression which is does not correct is A. 9 + 12
Step-by-step explanation:
Length of the rectangular garden = 12 feet
Width of the rectangular garden = 9 feet
We need to find the perimeter of the garden.
The perimeter of the garden is given by the formula = 2 × (Length + Width)
⇒ Perimeter = 2 × (12 + 9)
= 2 × 12 + 2 × 9
= 12 + 12 + 9 + 9
So, All the options B. , C, and D. are correct to find the perimeter of the rectangular field.
Therefore, The expression which is does not correct is A. 9 + 12
