Curated Video
Olivia's Garden (Find the area of a polygon using the area of a rectangle and the area of a triangle)
Olivia is trying to determine the area of her garden. Her garden is shaped as a trapezoid, since it has 4 sides with only one pair of parallel sides. Unfortunately, Olivia doesn’t know the formula to find the area of a trapezoid. How...
Curated OER
What is the Formula for the Volume of a Pyramid?
There are a lot of moving parts in this problem. There's the formula for a triangular prism. Then there's the formula for a triangular pyramid. And don't forget the formula for the area of the base of a triangular shape. Get out your...
Khan Academy
Khan Academy: Trigonometry: 2003 Aime Ii Problem 14
Video demonstrates solving a trigonometric problem that includes finding the area of a convex equilateral hexagon in the coordinate plane using trigonometric identities and the Pythagorean Theorem. [18:18]
Khan Academy
Khan Academy: More Trig Examples: 2003 Aime Ii Problem 14
Video demonstrates solving a trigonometric problem that includes finding the area of a convex equilateral hexagon in the coordinate plane using trigonometric identities and the Pythagorean Theorem.
Other
Mario's Math Tutoring: Find the Area of Regular Polygons
Learn how to find the area of a regular polygon using the formula A=1/2ap in this free math video tutorial [5 mins, 17 secs]with two examples by Mario's Math Tutoring.