The circumference of a circle is the distance around the shape. The ability to round a number to a number of decimal places or to a number of significant figures means that answers can be written to ...

The radius of a circle or a sphere is the distance between the center and the edge. The radius can be used to calculate a circle's diameter, area and circumference. Likewise, a sphere's volume is ...

Beth Py-Lieberman - Author, The Object at Hand: Intriguing and Inspiring Stories from the Smithsonian Collections Every year, the celebration of Pi Day (March 14 is 3.14) grows more ambitious. Math ...

The volume of a cylinder is the area of the cross-section multiplied by the height. D button is used to convert a value in terms of π to a decimal value. To calculate the surface area of a cylinder: ...

Circles are some of the most beautiful and versatile shapes in nature. Every March 14, mathematics enthusiasts from all over the globe commemorate Pi Day and the International Day of Mathematics (IDM) ...

Archimedes' method finds an approximation of pi by determining the length of the perimeter of a polygon inscribed within a circle (which is less than the circumference of the circle) and the perimeter ...