Answer:
Angle is measured in degrees (°) and radians. It is formed between the two adjacent sides of a polygon. Every polygon has different sides and different numbers of angles. The formula to find the angles in degrees is useful in geometry and trigonometry. It is essential to understand other concepts of mathematics, such as arc, a central angle of the circle, etc.
A full circle = 360°
A straight line = 180°
A semicircle= 180°
A Quarter circle = 90°
example
Given: Hypotenuse = 12
Perpendicular = 6
The trigonometry function to calculate the angle is given by:
sinA = 6/12
A = 30°