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Midline Surprise
Author:
Ted Courant
Two 45º-45º-90º triangles are placed side-to-side, as shown, and midpoints of the indicated segments are joined.
GeoGebra
Prove that the resulting quadrilateral is a square.
New Resources
Two-Way Tables and Ven Diagrams
Silhouettes without gaps and isolated
Nefroida
Positive and Negative Space
Untitled
Discover Resources
CCSS IP Math I 2.6.3 Example 3
jumas digital workbook
Snub operation with the faces of the Cube: From Cube to Octahedron. Rhombicuboctahedron. Snub Cube.
Discover Topics
Mathematics
Integers
Mode
Definite Integral
Vectors 2D (Two-Dimensional)