L3: Radian Measures

What is the formula to convert radians to degrees?

Convert $$\frac{13\pi}{18}$$ into degrees.

What is the length of an arc in a circle?

If the radius of a circle is 10 inches and the angle is $$\frac{\pi}{3}$$ radians, what is the length of the arc?

What is the relationship between the circumference of a circle and radians?

How many radians are in a full circle?

What is the value of $$\frac{\pi}{2}$$ radians in degrees?

What is the value of $$\frac{3\pi}{2}$$ radians in degrees?

Find the length of the arc if the radius is 5 inches and the angle is $$\frac{\pi}{4}$$ radians.

What is the formula for finding the area of a sector in a circle?