Grades 7-8 Video Solutions 2023-2023_7-8

Video Transcription

Question 13. Some edges of a cube are to be colored red so that every face of the cube has at least one red edge.  What is the smallest possible number of edges that could be colored red?  So a cube is made up of six faces.  Now each edge that is colored red will affect two of these faces. So the smallest possible number of edges that we need to color red so that it affects every face  will be 6 divided by 2, which will give us our answer, B, 3.

Video Summary

Question 13. Some edges of a cube are to be colored red so that every face of the cube has at least one red edge. What is the smallest possible number of edges that could be colored red? So a cube is made up of six faces. Now each edge that is colored red will affect two of these faces. So the smallest possible number of edges that we need to color red so that it affects every face will be 6 divided by 2, which will give us our answer, B, 3.

Keywords

cube

edges

red

faces

minimum