QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
What is cos 60°?
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Step 1: Recall the values of trigonometric functions for common angles.
The special right triangle with an angle of 60 degrees has side lengths in the ratio of $1 : \sqrt{3} : 2$.
The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle.
Step 2: Identify the side lengths for the given angle.
For the 60-degree angle, the side lengths are in the ratio of $1 : \sqrt{3}$.
The hypotenuse has a length of 2 units, and the adjacent side has a length of 1 unit.
Final Answer
\cos(60^\circ) = \frac{1}{2}
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