Sine (Noun)
Meaning
Ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle.
Classification
Nouns denoting relations between people or things or ideas.
Examples
- The sine of a right angle in a right-angled triangle is equal to one.
- To calculate the sine of an angle, you need to divide the length of the side opposite the angle by the length of the hypotenuse.
- In a right-angled triangle with an angle of 30 degrees, the sine of the angle is half of the hypotenuse.
- Students struggle to understand the concept of sine in trigonometry because of the abstract relationship with the triangle's sides.
- The sine of an obtuse angle is the same as the sine of its supplementary acute angle in a right-angled triangle.