Answer:
The answer is option B
Step-by-step explanation:
Perimeter of a rectangle = 2l + 2w
where
l is the length
w is the width
From the question
l = 12m
w = 400 cm
First we must convert the length from meters to centimeters
1 m = 100 cm
12 m = 12 × 100 = 1200 cm
So l = 1200 cm
Substitute the values into the above formula
We have
Perimeter = 2(1200) + 2(400)
= 2400 + 800
We have the final answer as
Perimeter = 3200 cm
Hope this helps you
