PROBLEMS. 



4of 



Another Method. 



Make B in perpendicular 

 and equal to A B. Bisect A 

 B in « ; then with the centra 

 «, and radius « w, cross A B 

 produced in O. With the 

 centres A and B, and radius 

 Ao, describe arcs intersect- 

 ing in D, the opposite angle 

 of the pentagon. Lastly, 

 v/ith centre D, and radius A B, cross those arcs ngain In 

 C and E, the other two angles of the figure. Then draw 

 the lines from angle to angle, to complete the figure. 



A thh*d Method, nearly true, 



On the centres 

 A and B, with the 

 radius A B, * de- 

 scribe two circles 

 intersecting in m 

 and rt. With the 

 same radius, and 

 the centre w, de- 

 scribe r Ao B S, 

 and draw m n cut- 

 ting it in o. Draw 

 r o C and S o E, 

 which will give 

 two angles of the ^ 



pentagon. Lastly, with radiu* AB, and centres C and Ej 

 describe arcs i itersecting in^D, the other angle of the pen- 

 tagon nearly. 



PROBLEM 



