Questions: What is cos A?

What is cos A?
Transcript text: What is $\cos \mathrm{A}$ ?
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Solution

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Solution Steps

Step 1: Identify the sides of the right triangle.

The side adjacent to angle A is 8. The hypotenuse is 9. The opposite side is $\sqrt{17}$.

Step 2: Recall the definition of cosine.

Cosine of an angle in a right triangle is defined as the ratio of the adjacent side to the hypotenuse.

Step 3: Calculate $\cos A$.

$\cos A = \frac{\text{adjacent}}{\text{hypotenuse}} = \frac{8}{9}$.

Final Answer

\\(\boxed{\cos A = \frac{8}{9}}\\)

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