10:40

Find The Maximum Area of Rectangle in a Semicircle | Largest Rectangle in a Semicircle | 2 Methods

15:51

Find the area of the circle | Sweden Math Olympiad Geometry Problem

12:34

Japanese Math Olympiad | A Very Nice Geometry Problem

10:43

Hungary Math Olympiad Geometry Problem | Find the shaded area in the quarter circle

9:31

Harvard University Admission Entrance Tricks | X=? & Y=?

13:12

Find the shaded area in the square | A Very Nice Geometry Problem | 2 Different Methods

11:30

USA Math Olympiad | A Very Nice Geometry Problem

27:41

Russian Math Olympiad Problem | A Very Nice Geometry Challenge | 2 Different Methods