Find the Center of a Circle (3 EASY and QUICK Ways)

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- So you're trying to find the center of a circle? I'm gonna show you my three favorite ways to do that. I'm Mike. Welcome to TomahawkDIY. Few years ago, I made a video that got hundreds of thousands of views as people tried to figure out how to find the center of a circle. There were lots of great comments. I went through and tested all those different comments to see what I liked best. Came up with this. Take a look. I'm trying the circle method number one. So thanks to Oz Skes, Skies, Oz Skies, S-K-E-S, thanks to Oz for this method. I quite like this one. So Oz recommends drawing a square. So to draw a square, you wanna have a square. I'm gonna get a point here, and then we've gotta get our same length on each of these two sides. So let's see, four and a half, not quite, we're getting close though. It can be a little bit tricky to get it. There's four and five eighths on that side. Let's see, four and a half, four and five eighths on this side. Okay, so I'm gonna draw my square here. Now if this has been done right, when we spin it round here we should be able to line these two points up again with four and five eighths like so. And we should be able to finish that square. So with our square drawn, we can draw our diagonals and that's gonna hit the center like so. All right. Next, comes from Sooner Science Nerd. Thanks to Sooner Science Nerd for this suggestion. Sooner Science Nerd is using the chords. So remember a chord is just drawing between two edges of a circle, take two points on a circle, draw a straight line, that's called a chord. Now I'm gonna make it easier. I'm gonna use chords that are lengths I can easily divide in half. So let's draw a four inch chord right here like so, and then at the halfway point, the midpoint, we're gonna draw a line. And just for good measure, over here we'll do a six inch chord, which would be three at the half length. And for fun, we'll do five inches over here. And half of five inches is two and a half. So now we've gotta draw 90 degree angles from each of these three points. And you could use a square to do that if you got a square like this. Or you can find anything else got a square. So on this case, I'm just gonna use a piece of paper 'cause that's gonna be a nice 90 degree angle. Go like that, do the same thing over here, got my 90 degree angle, and that should be our center. 90 degree angle here. And there we go. We got the center. Now we coulda done that with just two chords obviously. The third one is just to check, kinda making sure that they all come together nicely. So thank you, Sooner Science Nerd, for that suggestion. Okay. And then we've got JC130676 recommends this way. This is my third preferred way to find the center of a circle. We're gonna be cutting out a template with a piece of paper. I'm gonna throw something down I can cut on, and you can do this in one of two ways. You can either draw the line and use some scissors, or instead of drawing a line on this one, I'm just gonna use a knife. Obviously, be really sure you're not cutting yourself. I'm gonna follow around this. Gotta keep my angle. Looks like I'm cutting this circle down a little bit, but if I've done this well that paper ought to just come right up. Got a little bit, trim off over here. And there we go. Put the cover back on the knife. And now with this template, we're gonna quarter it. So if I get my edges line up nice and neat, fold it in half that way, fold it in half another way, and if I take, and JC130676 suggest just cut the edge of my circle, and I've got a template. So got that thing all lined up nice around the edges, I believe. And there's the center of my circle. So I hope you found that helpful, checking out these different ways to find the center of a circle. Thanks so much for watching TomahawkDIY. Please subscribe, leave some comments. If you've got some ways that you prefer better, leave some notes, maybe we'll try it and learn some more good tricks in the future. Please share this, like the video, subscribe, and have a great day!
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Channel: Tomahawk DIY
Views: 921,601
Rating: 4.6695189 out of 5
Keywords: 3 Easy Ways to Find the Center of a Circle, Easy and quick ways to find center of a circle, Find the Center of a Circle, Center of Circle, Find center of a circle, Easy ways to find center of a circle, Quick ways to find center of a circle, Easy woodworking, Woodworking tips, Do-it-yourself, Easy tips, Chords, Using a square, How-to (Website Category), circl, Geometry (Field Of Study), DIY, Drill center of a circle
Id: UUL24IdUrkU
Channel Id: undefined
Length: 6min 38sec (398 seconds)
Published: Tue Jul 18 2017
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