1. STEM Project 2019
9/11 Memorial Hypotenuse
Chung L, Hadelly R.

2. Objective:
Use trigonometry to find the displacement between individual A standing on one corner of the North Pool of the 9/11 memorial to individual B who is standing on the opposite corner of the North Pool.

3. Problem:
The 9/11 memorial features two waterfalls/reflecting pools and are an acre in size each. If individual A is standing at the near east corner of the North pool and individual B is right across on the opposite corner, what is the shortest distance or the displacement between individual A and B?

4. Solution:
Since the North Pool of the 911 Memorial is a square which is made up of two isosceles triangles, the hypotenuse of one of the two isosceles triangles would be the shortest distance (displacement) from A to C. 

5. Isosceles Right Triangle:
An isosceles triangle has angles of 45°- 45° and 90°.

6. The length of the sides of the square pool are 208.71 ft each.

7. Using the 90°- 45°- 45° degree triangle rule, we know that if the sides are  ft each the hypotenuse H would be: