We are trying to find the value of pi
We measured 4 different circular shapes
Shape Circum Diameter C/D
1 550mm 196mm 2.801
2 490mm 165mm 2.96
3 320mm 107mm 2.99
4 330mm 90m 3.
Average
=(2.801+2.96+2.99+3.66) / 4
=3.102