SOLUTION: In a ΔABC, angle B = 90 degrees, AB = 6 units and AC = 10 units then the length of angle bisector AD from angle A is

Algebra ->  Triangles -> SOLUTION: In a ΔABC, angle B = 90 degrees, AB = 6 units and AC = 10 units then the length of angle bisector AD from angle A is      Log On


   



Question 824448: In a ΔABC, angle B = 90 degrees, AB = 6 units and AC = 10 units then the length of angle bisector AD from angle A is
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
cosA=6/10=3/5
A=arccos(3/5) - about 53.13 deg
so half is about A2=26.57 deg
therefore
cosA2=6/AD
cos26.57=6/AD
AD=6/cos26.57=6.71