Answer:
AC = 2.96
Step-by-step explanation:
Use the trigonometric ratio cosine:
cosine = adjacent ÷ hypotenuse
cos(65°) = AC ÷ 7
[tex]cos(65) = \frac{AC}{7}[/tex]
Multiply both sides by 7:
7(cos(65)) = AC
(Note: Set your calculator to degrees!)
And plug 7(cos(65)) into your calculator to get:
AC ≈ 2.96
