Suppose ABC Is a Right Triangle with Sides of Lengths $\cos \mathrm { A }$

question 84

Multiple Choice

Suppose ABC is a right triangle with sides of lengths a, b, and c and right angle at C. Find the unknown side length using
the Pythagorean theorem and then find the value of the indicated trigonometric function of the given angle. Rationalize
the denominator if applicable.
-Find $\cos \mathrm { A }$ when $\mathrm { a } = \sqrt { 6 }$ and $\mathrm { c } = 12$

• A) \(\frac { 1 } { 2 }\)
• B) \(\frac { \sqrt { 6 } } { 12 }\)
• C) 23
• D) \(\frac { \sqrt { 138 } } { 12 }\)

---

Definitions:

Distress of Illness

The emotional, physical, and psychological discomfort or pain caused by the experience of being ill.

Personal Life

Aspects of an individual's life that are personal or private, including relationships, hobbies, and home life.

Caring Behaviors

Actions that demonstrate concern, empathy, and consideration for the needs and well-being of others.

Clear Explanations

Detailed and understandable descriptions or instructions that leave little to no room for confusion.