Answer:
• The value of cos θ as an unsimplified fraction = 1.8/3.5
,
• The value as a decimal rounded to 3 decimal places = 0.514.
Explanation:
Cosine is the ratio of the adjacent side to the hypotenuse.
In the right triangle:
• The side adjacent to θ b = 1.8
,
• The hypotenuse, c = 3.5
Therefore:
[tex]\begin{gathered} \cos\theta=\frac{b}{c} \\ =\frac{1.8}{3.5} \\ \approx0.514 \end{gathered}[/tex]
• The value of cos θ as aniunsimplified fraction = 1.8/3.5
,
• The value as a decimal rounded to 3 decimal places = 0.514.
