Finding the Center of a Circle

Total Time: 5 minutes

Supplies:

• 1 pre-cut plywood circle
• 1 metal carpenters square

Steps:

1. First you need to select a carpenter's square that is larger than your circle. Place the square so that the point is at the edge of the circle. Take a ruler, lay it across the square so that it lines up with the points where the square and circle edges aline. Then draw a line with your pencil.

 

 
2. Next flip your square over so that the point is now touching the opposite edge of the circle. Repeat step one. You will now have two pencil lines that intersect at the center of your circle.