Question

find the value of each trig ratio. evaluate cos a for the right triangle shown. type your answer in the boxes

Explanation:

Step1: Recall cosine formula

In a right - triangle, \(\cos A=\frac{\text{adjacent side}}{\text{hypotenuse}}\).

Step2: Identify sides

For angle \(A\), the adjacent side is \(AB = 20\) and the hypotenuse is \(AC=29\).

Step3: Calculate \(\cos A\)

\(\cos A=\frac{20}{29}\)

Answer:

\(\frac{20}{29}\)