+0  
 
0
107
1
avatar+222 

The circle with center A and radius 10 and the circle with center B and radius 7 are externally tangent. A line that is externally tangent to both circles is drawn, where both circles lie on the same side of the line. This common tangent intersects line AB at C. Find the length BC.

 Jun 8, 2020
 #1
avatar
0

By similar triangles, BC = 331/10.

 Jun 8, 2020

33 Online Users

avatar
avatar