Answer:
The correct answer is A.
Step-by-step explanation:
The area of a rectangle can be calculated using the following formula:

If we know that the area measures
and one side of the figure measures 4.2 m, we can say that:

We isolate the side we don't know:

So I = 9 m
To know the perimter of a rectangle, we use the following formula:



Answer:
b i think
Step-by-step explanation:
because even i didnt see it i still remember my old lessons
#CarryOnLearning
Answer:
-18 3/4
Step-by-step explanation: