Question

What is cosA for this triangle?

48/55

55/73

55/48

48/73

Answer 1

For this case we must indicate the cosine of A, of the figure shown. By definition:

`Cosine (A) = \frac {Cateto\ adjacent\ to\ the \ angle} {hypotenuse}`

Substituting the values we have:

`Cosine (A) = \frac {48} {73}`

So, we have to:

`Cosine (A) = \frac {48} {73}`

Answer:

Option D