i>MYSICAL AND LITERARY, ti^ 



Ways the angle FCD, the angles CDF, 

 CFD will be given; and therefore the 

 angles BGK, KCF will be given j therefore 

 the arcs BK, KF are given : becaufe FG is 

 a tangent to the circle at the point F, the 

 angle CFG will be a right angle : and be^ 

 caufe the angle FCG is given,' and likeways 

 the fide CF given, the fides CG, CF will 

 be given ,: in the triangle GCD, becaufe the 

 fides GC, CD are given, and'the angle GCD 

 given, the angles CGD^ CDG will be givens 

 and in the triangle GCH, becaufe the fides 

 GC, CH and the angle CGH is given, thd 

 angle GCH will be given j and therefore the 

 arc HK will be given : and becaufe the arc 

 FK is given, therefore the arc FH is given. 

 Again, becaufe the arc FK is given, the fedor 

 FCK will be given, and likeways the tri- 

 angle FCK given, therefore the fpace 

 KEFK will be given j and becaufe the 

 triangles, GFC, GHC, are given, the fpacd 

 GFCHG will be given ; and becaufe the are 

 FH is given, the fedtor FCH wiU be given j 

 therefore the fpace GFHG will be given. 



Vol. if P Pro??i 



