Welcome to the **Pi Measurement **section of this web site **Measuring Pi Squaring Phi.**

**News Flash Update! Nov 30, 2018…**

Go to Main Menu Choice “Geometric Proofs of Pi,” and scroll down past Proof 6 in that section and view the latest simplified Proof 7 (a) Pi Circumference Measurement and Proof 7 (b) simplified Math Proof for the true value of Pi = 4 / sqrt (Phi).

In this section we are going to:

- Show the type of CNC machine used to cut a 1.0000 meter diameter circle — a $100,000 Austrian built PROFIT H08 FORMAT 4 CNC machine,
- Measure the diameter of the one-unit circle, and
- Measure the Pi Circumference of the one-unit circle.

1. Attributes of the CNC PROFIT H08 Format 4 machine: (Play the video)

2. Measuring the diameter of the one unit circle: (Play the video)

3. Measuring the circumference of the one-unit circle: (Play the video)