10.8: Circumference Difficulty Level: At Grade Created by: CK-12 CK-12 Geometry Concepts Perimeter and Area % Progress Practice Circumference Practice Progress % Practice Now Read Practice Resources Details Loading Contents Vocabulary Language: English ▼ English Spanish chord chordA line segment whose endpoints are on a circle. circumference circumferenceThe distance around a circle. diameter diameterA chord that passes through the center of the circle. The length of a diameter is two times the length of a radius. pi pi(or ) The ratio of the circumference of a circle to its diameter. Image Attributions Share this: Description This concept teaches students how to calculate the circumference of a circle. Learning Objectives None Related Materials Circumference Area and Circumference of Circles Difficulty Level: At Grade Authors: Bill Zahner Lori Jordan Tags: circle circumference diameter (4 more) MAT.GEO.820.L.2 Perimeter pi radius Subjects: mathematics Geometry Concept Nodes: MAT.GEO.820 (Circumference) Grades: 9 , 10 Date Created: Jul 17, 2012 Last Modified: Dec 17, 2014 Vocabulary None You can only attach files to Modality which belong to you If you would like to associate files with this Modality, please make a copy first.