SOLUTION: ΔABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C?

Algebra ->  Triangles -> SOLUTION: ΔABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C?       Log On


   

Question 834361: ΔABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
It's a right triangle.
C = 90 degs
cos = 0