The length of the sports hall is rectangular in shape 15m. Find the perimeter of the hall if its area is 120m.

Remember that area is length times width. Next, we compose an equation according to the condition of the problem. Let’s denote by x the width of the sports hall. Then:

15 * x = 120.

We are looking for an unknown factor, according to the rule:

x = 120/15.

x = 8.

Let’s check the correctness of the solution to the equation:

15 * 8 = 120.

120 = 120.

Everything is correct.

We are looking for the perimeter of the hall, that is, the sum of all 4 sides of the building, marking the perimeter with a capital R.

P = 15 m + 15 m + 8 m + 8 m = 30 m + 16 m = 46 meters – the perimeter of the sports hall.