Key Words
-
AreaThe area of a circle is pi times the radius squared (A = π r²)
-
CircumferenceThe distance around the edge of a circle (C=2πr). It is a type of perimeter.
-
PiThe ratio of a circle's circumference to its diameter. The symbol is π.
π = 3.14159265358979323846... (the digits go on forever without repeating)
A rough approximation is 22/7 (=3.1428571...), but that is not accurate. -
RadiusThe distance from the centre to the circumference of a circle. It is half of the circle's diameter.
-
Unit PriceThe cost per item or per one liter, one kilogram, one pound, etc.
Example: You can buy 2 liters for $3.80
The Unit Price = $3.80 / 2 liters = $1.90 per liter
Circle
Mathsisfun. (2020). Circle. Retrieved from MathsisFun, 2020
Introduction
Welcome to the investigation of circles. This site provides resources and strategies for understanding and solving real-world problems that apply to circles.
Introduction
Lopes, R. (2013, July 10). The infinite life of pi. Retrieved from https://www.youtube.com/watch?v=9a5vHXsUvUw&feature=emb_title