1
00:00:00,000 --> 00:00:03,000
Each side builds its own square. The areas are no coincidence.

2
00:00:07,600 --> 00:00:09,600
The square on side a has area 9.

3
00:00:13,200 --> 00:00:15,200
The square on side b has area 16.

4
00:00:18,800 --> 00:00:21,800
And the square on the hypotenuse c has area 25.