Informal Proof: Area of a Circle vs. Area of Inscribed Polygon
Find the area of the circle using the formula.
What is the area of a circle with a radius of 1 cm?
What is the area of a circle that has a radius of 10 in?
Compare to the area of a regular polygon inscribed in a circle.
Move the slider and compare the actual area of the circle to the area of the polygon. Explain what happens as you increase the number of sides on the polygon.
Do you think that the area of the inscribed regular n-gon is a good estimate for the area of the circle? Why or why not?