Answer:
length = 40 ft
Step-by-step explanation:
Formula for Perimeter is
P = 2(l+b)
Here P = 130 ft Given
Width = 25 feet Given
We are asked to find l
Putting those values in the formula
130=2(l+25)
dividing both sides by 2
65=l+25
subtracting 25 from each side
l=40
Hence the classroom is 25 ft long
