# Math Experiments With the Circle

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A number of different math experience can be completed using the careful application of circular objects. Learn about math experiments with the circle with help from a longtime mathematics educator in this free video clip.

Part of the Video Series: College Math
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## Video Transcript

Hi, I'm Jimmy Chang, and we're here to talk about math experiments with a circle. Now when it comes to circles as you already know one of the things that you might want to consider when it comes to using experiments of course is use applications that would involve circular objects. And so as you know a circle has got a center along with a radius and a couple of other formulas that are associated with that is that of a circumference which is C is equal to 2PiR,R is the radius or the area of a circle which is A is equal to PiR squared. Now a couple of things to consider is for in terms of experiments is you can use string to your advantage and you can measure the circumference of a circle if you want to conduct some kind of experiments with that to kind of help you and the students understand how circumference is measured. If you like you can also use string to measure area, but you could also use a couple of other examples, pizza is often a popular illustration for experiments because most pizzas you know, come in circular shapes. So and you can use a pizza for example to kind of help with measuring if you want the circumference or even the area of that pizza but also as part of experiments you can think about using measurement tools. It can be a string to measure but definitely you know, have some rulers around to kind of measure what the radius might be as well as circumference and the area but with a circle you could do a lot of things as long as you keep in mind what kind of concept you want to drive home. So I'm Jimmy Chang and there are a few suggestions on math experiments with a circle.

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