Answer:
Cosine
Explanation:
We were given that:
Length of ramp = 14 ft
Angle of elevation = 22.28 degrees
We have a diagrammatic representation below:
We will proceed to find the base using the Trigonometric Ratio as shown below:
[tex]\begin{gathered} \text{We were given the hypotenuse \& the adjacent sides, hence, we have:} \\ CAH\Rightarrow\cos\theta=\frac{adjacent}{hypotenuse} \\ hypotenuse=14ft \\ adjacent=x \\ \theta=22.28^{\circ} \\ \cos(22.28^{\circ})=\frac{x}{14} \\ \text{Cross multiply, we have:} \\ x=14\cos(22.28^{\circ}) \\ x=12.9548\approx13.0 \\ x=13.0ft \end{gathered}[/tex]
We will thus use the cosine function to obtain the length of the base of the ramp
