# Create a Tool: The Spiral of Pythagorus

- Author:
- A B Cron

The creation of a

**custom tool**baffles some, completion of this exercise is to assist uses in learning how to create a custom tool. These lines can assist your construction efforts. A = (2, 2) B = (1, 1) a = Segment[A, B] C = B + UnitPerpendicularVector[Vector[A, B] ] b = Segment[B, C] c = Segment[A, C] {These are suggestions for this activity only, you may make your own choices.This activity shows one method of finding the square roots of by measuring the sides of triangles. This is a geometrical method of finding square roots.