+0  
 
+1
9
1
avatar+1627 

Help I need help with circles

 

 Jan 12, 2024
 #1
avatar+129185 
+1

minor arc FB  = 360 - 160 - 140   =  60

 

So angle FAC  =  30

 

Angle FCA =  (1/2) ( minor arc  GH - minor arc FB)  = (1/2) (160 -60)  =  50 

 

FC / sin FAC    =  AF / sin FCA

 

10 / sin 30°   = AF /sin 50°

 

AF  =  10sin 50° / sin 30° =  10 sin 50° / (1/2)  =  20sin 50°  ≈   15.3

 

 

cool cool cool

 Jan 12, 2024

3 Online Users

avatar
avatar