Answer:
Hypotenuse=2 units
Step-by-step explanation:
The given triangle is a right angled triangle:
The length of the third side of a right angled triangle can be find by using the Pythagorean Theorem:
Where,

Perpendicular= 2 units
Base=2 units

The hypotenuse of the triangle is also equals '2'
Let us consider the number of edges = x
we know that a triangle will have 3 edges and a square will have 4 edges. Using this details we can form an equation.
3x + 4x = 8484
7x = 8484
x = 8484/7
= 1212
Then
Number of square tiles = 1212/4
= 303
So there are 303 square tiles in the box. I hope the procedure is clear enough for your understanding. You can always use this method for solving similar problems.
2500 - 240 = 2260
2260/2= 1130 or female count 1130 + 240 = 1370 or male count\
1370 + 1130 = 2500