Dive into the thrilling world of Geometry Dash with our latest #shorts video, "Nine Circles: Original vs Layout." Discover the intriguing differences between the iconic original Nine Circles level and ...

The circumference of a circle = \(\pi d\) or \(2\pi r\). Look at the sector of the circle shown below. To calculate the length of the arc, we need to know what fraction of the circle is shown. To do ...

Arc length is a fraction of circumference. Area of a sector is a fractions of the area of a circle. Both can be calculated using the angle at the centre and the diameter or radius. Practice circle ...

The older I get, the more I realize that I have too often taken so much for granted. I continue to discover that there is much intelligence even in the simplest things, and "especially" in the ...

Silva Chang’s Colorado Math Circle recently hosted a Puzzlepalooza competition at the University of Colorado Boulder on December 7. The Colorado Math Circle is an organization directed by Silva Chang ...