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Computing sin(36°) with a pentagon (part a) (Samuel Zong) View |
Video 361 - Trigonometry - Pentagon (Chau Tu) View |
801 GE Part 1 Find Area and Perimeter of Pentagon (Quick Stop Math Shop) View |
Master AMC12B Problem 25 with Pentagon Secrets: A Must-Know for AMC u0026 AIME Aspirants (Thinking In Math) View |
How to find the Area of a pentagon (searching4math) View |
Side of perfect pentagon via sine of five angle -- Part II (Denis Potapov) View |
Exact Value of sin (18) and sin (54) (Mr. T's Math Videos) View |
Pentagon in Pentagon (Olympiad Question) (GeoSolve) View |
Some Golden Trig Identities: sin(18) and cos(36) (Dave's Math Videos) View |
Area of a regular polygon.avi (mrPSERIS) View |