A B C OF THE STEEL SQUARE 



127 



to a straight edge and marking along the blade 

 and tongue, which will give a gauge line to 

 which a bevel may be set. By taking 16 on the 

 blade and 12 on the tongue, as shown in Fig. 90, 

 the run of the hip rafters, 20, L obtained. 



Fig. 87. 



'V 6 



Fig. 88. 



Referring to Fig. 88, it will be seen that 

 20 on the blade and 10 on the tongue give the 

 seat and plumb cuts of the hip together with 

 the length, after one-half the thickness of the 



