Grades 11-12 Video Solutions 2026-2026_11-12

2026_11-12_03

Video Transcription

Video Summary

The transcript explains that the pentagon tiles form a ring whose outline is a regular polygon. Since two pentagon angles meet at each vertex, the exterior shape has interior angles of 144 degrees. Using the regular polygon interior-angle formula, this corresponds to a 10-sided polygon. Therefore, the complete ring is made of <strong>10 regular pentagons</strong>.