Posted by geena on Wednesday, May 23, 2012 at 12:17am.
If b= 9, c= 5 and <A=67° find side a.

math  Reiny, Wednesday, May 23, 2012 at 4:33am
use the cosine law
a^2=9^2 + 5^2  2(9)(5)cos 67°
= ....
Posted by geena on Wednesday, May 23, 2012 at 12:17am.
If b= 9, c= 5 and <A=67° find side a.
use the cosine law
a^2=9^2 + 5^2  2(9)(5)cos 67°
= ....