Khan Academy
Khan Academy: Geometry: Proof Rhombus Area Half Product of Diagonal Length
Demostrates how to prove that one way to find the area of a rhombus is by taking half the product of the diagonals. [5:07]
Khan Academy
Khan Academy: Geometry: 2003 Aime Ii Problem 7
Explanation of 2003 AIME II (American Invitational Mathematics Examination) Problem 7. Finding the area of a rhombus based on the circumradii of triangles. This video also appears in the Geometry: Polygons, quadrilaterals, and...
Khan Academy
Khan Academy: Perpendicular Bisectors: 2003 Aime Ii Problem 7
Finding the area of a rhombus based on the circumradii of triangles.
Sophia Learning
Sophia: Area of a Rhombus
This video lesson demonstrates two ways for calculating the area of a rhombus. Students can check their understanding with an assessment. [4:55]