GRAPH OF SINE
GRAPH OF COSINE
In a right triangle, one angle is always 90 degrees.
We use trigonometry to determine the others.
Mark the triangle correctly.
The longest side (compared to the right angle) is HYPOTENUSE.
The side next to the next angle of the triangle is ADJACENT PERPENDICULAR.
The side opposite this angle is the OPPOSITE PERPENDICULAR.
The trigonometric sine and cosine functions describe the relationships between angles and sides in a triangle.
If we know the three sides of a triangle, how do we find the magnitudes of the angles without drawing it and measuring them with a protractor? This is where trigonometry comes in! It is the use of trigonometric functions sine, cosine and tangent in a triangle.
Sine and cosine are functions that describe angles using the aspect ratio of a right triangle. It is very useful in engineering, navigation, furniture manufacturing or construction.
opposite perpendicular
hypotenuse
adjacent perpendicular
Aid:
How much is sin 60 °?
Difference between graphs
