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Curated Video
How to Find the Perimeter
This video explains how to find the perimeter of 2D shapes such as squares, rectangles, triangles and composite shapes. A range of practice questions are at the end of the video.
Khan Academy
Khan Academy: Geometry: Ca Geometry: Area, Circumference, Volume
Demonstrates solutions to problems #31-35 of California Geometry released state test questions. Problems address understanding of perimeter, volume, surface area, area, and Pythagorean theorem. [10:53]
Sophia Learning
Sophia: Square Practice Problems
This video lesson demonstrates how to use the characteristics of a square to find angle measures and side lengths. [4:31]