Math trig triangle help?

Posted on 2016-11-21 18:50:00 in Math by RONALDO

Let A1, A2, A3 are areas of the triangles formed by joining the points of contact of excircles opposite to A, B, C respectively with sides of triangle ABC and A0 is the area of triangle formed by joining the points of contact of incircle with sides of the given triangle. If Δ is area of triangle ABC. If symbols have their usual meaning, then (s is semiperimeter of triangle ABC) 
rr1/A1 = 

1)R/s 
2)2R/s 
3)s/R 
4)s/2R

---

Answer Comment

No Answers Posted Yet.