2 verified, narrated animations about area, reviewed by hand and checked frame by frame. Watch free; download the video or the Manim file with any paid plan.
An x-by-x square is joined by two strips of width 3/2, representing the algebraic expression x squared plus 3x…
A 48 by 18 rectangle is filled with the largest possible squares in stages: two 18-squares leave a 12 by 18 st…
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