Finding the Area of a Circle . Take a circle . . . Divide it up into sectors. Colour the top semicircle green & the lower semicircle yellow. Pull the sectors apart. Arrange the green sectors in one line & the yellow sectors in another line. The sectors fit together like teeth . . .
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
It’s the radius!
Half the circumference
But this shape is almost a rectangle . . .
So can you approximate its area?
What would happen if you cut the circle into smaller and smaller sectors?
It would become even more like a rectangle . . .
So this approximation for the area of the circle would be even more accurate . . .