Radius

Using circumference to find a circle's area. Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.

This lesson will look at an example of what the formula for arc length with radius and theta.

This lesson will look at examples to explain geometric concepts.

This lesson will look at examples to give an explanation about Circles. Reviews basics of circles, and asks some questions about radius and diameter.

This lesson will look at an example of how to find the radius of a sector given arc length and theta.

This lesson will look at an example of how to find the missing angle measure given arc length and radius.

This lesson will look at examples to explain geometric concepts.

This math lesson will look at an example problem to explain how to determine the arc length with given theta and the radius

This lesson will look at an example of how to find the arc length when given the radius and angle.