Most of the exercises will focus on determining the diameter and circumference of a circle of any radius. The last set of Pi Worksheets for 7th grade involves calculating the area and circumference of a circle of varying radius. Let’s get out our ruler and measure the height and radius of Michael’s pie (and see if I can restrain from nibbling it in the process). For the next part, they will have to solve 20 questions with solutions. This will be as easy as store-bought pie! Which is pretty simple, if you reread that. Thank you, Archimedes.įor our math, we are going to be using the number 3.14159, the radius, and the height of the pie. Pi is infinite and patternless and it’s a lot of fun to play with (and memorize, if ye can!), making it humankind’s best beloved irrational numeral. Recently, Pi has been calculated to over a TRILLION digits past the decimal (click this link to view only 1 million digits of Pi, if you dare). Archimedes, using many-sided polygons, discovered that pi was about 22/7. Radius - distance from center to the edge of the circle (exactly half of the diameter)Ī circle is always a little bit larger than three times its size around. It is the same measurement for circles of any size.ĭiameter - a line going through the circle from edge to edge, dividing circle in half.Ĭircumference - the distance around the circle.
Pi is the ratio of a circle’s circumference to its diameter: 3.14. Now I’ll give you a little bit of a summarized review on our wonderful Pi before we start measuring the pie itself. First of all, thanks to Instructables user MichaelM2015 for making our apple/blueberry pie, and what better object could you use to find the volume with Pi?
Today I will show you how to measure the volume of an object using our helpful mathematical term and irrational number Pi (3.14159265359) π.