MISCELLANEOUS TABLES AND INFORMATION 295 



Right-Angled Triangle. The 

 square of the hypothenuse of a 

 right-angled triangle equals the 

 sum of the squares on the other 

 two sides, or, in the figure, 



AB* + AC 2 = BC 2 , 

 01 O + N = M. 



By means of this rule, when any 

 two sides of a right-angled triangle 

 are given, the third can be 

 found. 



Volume of Cylinder. (Figure E.) 

 of the base by the altitude. 



Volume of Cone. (Figure F.) Multiply the area of the 

 base by one-third of the height. 



FIGURE E 



FIGURE F 



Volume of Prism whether Eight or Oblique. (Figure 

 G.) Multiply area of base by the vertical height. 



Volume of Pyramid. (Figure H.) Multiply base by 

 one-third of the height. 



To Measure the Contents of a Box or Solid with Sides 

 at Right Angles to One Another. Multiply length by 

 breadth by height. If the dimensions are in feet the result 

 will be the contents in cubic feet. 



