cosine
/ˈkoʊsaɪn/
noun
- In a right triangle, the ratio of the length of the side adjacent to an angle to the length of the hypotenuse.
- The teacher explained that cosine is one of the basic trigonometric functions.
- To find the cosine of a 30-degree angle, divide the adjacent side by the hypotenuse.
- We used cosine to calculate the distance across the lake.
- A mathematical function that describes the relationship between an angle and the x-coordinate on a unit circle.
- The computer program plotted the cosine of each angle from 0 to 360 degrees.
- In physics, cosine helps describe the motion of a pendulum.
- The graph of cosine looks like a wave that starts at its highest point.