Determining the Area of a Rhombus
This Demonstration shows how to find the area of a rhombus. The rhombus shown is made up of four 3-4-5 triangles, and the parts of each triangle can be moved to to fill part of the lattice of unit squares. This Demonstration also determines the area of a 3-4-5 right triangle.
This was a project for Advanced Topics in Mathematics II, 2018–2019, Torrey Pines High School, San Diego, CA.