335 



APPENDICES. 



APPENDIX I. 



A. Area of circles for diameters ranging from 1 inch to 



60 inches. 



B. Sum of the areas of circles for diameters ranging from 



1 inch to 48 inches, 

 or, 



Volume of cylinders for diameters ranging from 1 inch 

 to 48 inches and any length. 



Example : 



Find the area of 24 circles of 15 inches diameter. 



Square Feet. 

 Area of 20 circles = 10 x 2-4544 = 24-544 

 Area of 4 circles = 4-9088 



Total = 29-4528 



Find the volume of a log 24 feet long with a mean 

 diameter of 15 inches. 



Cubic Feet. 

 Volume of a log 20 feet long = 10 x 2-4544 = 24-544 

 Volume of a log 4 feet long = 4-9088 



Total = 29-4528 



