These triangles are either 45 45 90 triangles or 30 60 90 triangles
For the 45 45 90 triangles the smaller sides are
s and the large one is s times the square root of two
For 30 60 90 the smallest side is s the hypotenuse is 2s and the last one is s root 3
For example 1. X is 7 the hypotenuse is 14
The sides on 2 are 6 Times Square root of 2
3. The sides are 3 each
