Basic Trigonometry
Find the values of it:
SIN=Sine, Opposite/Hypotenuse, known as SOH
COS=Cosine, Adjacent/Hypotenuse, known as CAH
TAN=Tangent, Opposite/Adjacent, known as TOA
For angles, you may know 0°, 30°, 45°, 60° and 90°:
Change degrees to degrees, minutes and seconds:
24.63°=?
First, 0.63×60=37.8, so 37'
Then, 0.8×60=48, so 48"
Last, the answer is 24° 37' 48".
Change degrees, minutes, seconds to degrees:
24° 37' 48"=?
First, 48/60=0.8, add it like this: 37+0.8=37.8
Then, 37.8/60=0.63 add it like this: 24+0.63=24.63
Last, the answer is 24.63°.
Quadrant
Quadrant I: 0°-90°
Quadrant II: 90°-180°
Quadrant III: 180°-270°
Quadrant IV: 270°-360°