Saved Bookmarks
| 1. |
If H is the orthocentre of triangle ABC, R = circumradius and P = AH + BH + CH, then |
|
Answer» <P>`P = 2 (R + r)` `:. P = 2R (cos A + cos B+ cos C)` `= 2R (1+(r)/(R))` `=2 (R + r)` We know that in any triangle, `r le(R)/(2)` `:. P le 2R + R` `rArr P le 3R` |
|