Question

The third grade classroom

Has a perimeter of 130 feet. If it is25 feet wide, how many feet long is the classroom?

Answer 1

length = 40 ft

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