Calculations and Geometry[br][br]1) Here I have shown the Calculations of some of the important relationships.... ( Best way to use input box: click to right of number - hit back space - type in new number )[br][br]2) Just study the numbers and relationships[br][br]3) You can try some calculations with the calculator input box[br][br]4) 5.37 input box relates to the Circles : 9.87 - 5.37 ..etc. - Extra: Calculate the Number (13) - Put 10 into input box on bottom which gives 5.85. 5.85/1.35 = 4.33333 * 3 = 13.