Array
Lumos Video Store
This page provides a list of educational videos related to Hands On: Perimeter. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Hands On: Perimeter.
Finding perimeter when a side length is missing | Math | 3rd grade | Khan Academy
By Khan Academy
Lindsay finds the perimeter of a figure when a side length is not given.
Circles: radius, diameter, circumference and Pi | Geometry | Khan Academy
By Khan Academy
The radius is the distance between the center and any point on the circumference of a circle. The diameter is always twice the radius. The circumference is the perimeter of the circle.