Belly Button Ratios

Measure your height in inches and divide it into two measures.

1. The first measures the length from your feet to your belly button.
2. The second measures the length from your belly button to the top of your head.

Use the formulas below to find your belly button ratios.

Long Measure - The distance from your belly button to the bottom of your foot.
Short Measure - The distance from the top of your head to your belly button

First Ratio = height/long measure = __________
Second Ratio = long measure/short measure = __________

Put your ratios on the board.

3. Find the average of the first ratios: __________
4. Find the average of the second ratios: __________

Part Two: Fibobelly Ratios:

5. Calculate 1/1: __________
6. Calculate 2/1: __________
7. Calculate 3/2: __________
8. Calculate 5/3: __________
9. Calculate 8/5: __________
10. Calculate 13/8: __________
11. Calculate 21/13: __________
12. Calculate 34/21: __________
13. Calculate 55/34: __________
14. Calculate 89/55: __________
15. Calculate 144/89: __________
16. Calculate 233/144: __________
17. Calculate (1+√5) ÷ 2 ____________________
18. Calculate 1 ÷ 1.618033988 ____________________

Are either of the ratios in 3 or 4 close to the Fibonacci ratio above?

Credits:
http://www.hked-stat.net/common/activity_ks4_3.htm