Question

What is the Cos (A) in triangle ABC?

/
10 10
26 26
24 24

Answer 1

Answer:

while using the law of sines I got

sin90/26=sinA/24

24sin90/26=sinA

sin^-1(24sin90/26)=(sinA)sin^-1

=67.380135052

But in this case it ask for the side which is 24 because it is across the angle A