Рет қаралды 54,139
More Lessons: www.MathAndScie...
Twitter: / jasongibsonmath
In this lesson, you will learn what the radian angle measure is and why we use it instead of degrees in trig and precalculus. We will also derive the equation for the arc length of a portion of the circumference of.a circle along with the sector area of a circle. These concepts are used extensively in trigonometry.