Finding the Area of a Circle Using Circumference

This video tutorial teaches how to find the area of a circle using its circumference. It begins by reviewing the formulas for area and circumference, highlighting a common mistake of using diameter instead of radius. The tutorial then demonstrates how to correctly calculate the area using examples, including one with an approximated value of pi. By the end, viewers will understand how to derive the area from circumference accurately.

What is the formula for the area of a circle?

How do you find the radius if you know the diameter?

How do you calculate the area of a circle using its circumference?

If a circle has a circumference of 18 pi yards, what is its diameter?

What is the area of a circle with a diameter of 12 centimeters if pi is approximated as 3.14?