Grades 5-6 Video Solutions 2021-video 2021 5-6/30

Video Transcription

Video Summary

The problem involves arranging nine rectangular cards with different shapes in each cell such that cards can only be placed adjacent if the shapes match on their common sides. The task is to identify which card was not used to form the given rectangle. By process of elimination, cards with matching shapes on the left or top were identified, narrowing down possibilities. After evaluating positioning compatibility, it was concluded that card E did not fit the criteria for placement, as neither its top nor side shapes matched with adjacent cards. Therefore, card E was not used.

Keywords

rectangular cards

shape matching

card elimination

adjacent placement

unused card