This geometry video tutorial explains how to calculate the area of a regular polygon using a simple formula. The first two problem explains how to calculate the area of a pentagon and a hexagon given the apothem and a side length. The next two problems explain how to calculate the area of a hexagon and a pentagon given the only the side length. You need to use right triangle trigonometry to calculate the length of the apothem. First, you need to calculate the angle. The area of a regular polygon is half of the product of the perimeter and the apothem of the polygon. The sixth problem discusses how to calculate the area of a regular hexagon given the radius only. The last problem explains how to calculate the area of an equilateral triangle with a circle inscribed in it with the radius given. This geometry video contains plenty of examples and practice problems.
Area of a Rectangle:
https://www.youtube.com/watch?v=M8JdRHeQBW8
Area and Perimeter:
https://www.youtube.com/watch?v=gtMKsFXjLHw
Area of a Square:
https://www.youtube.com/watch?v=tKPxFv0x4VY
Area of a Triangle:
https://www.youtube.com/watch?v=svWYgZs33bA
Calculating The Height of a Triangle:
https://www.youtube.com/watch?v=a1PR9O1Va84
Area of a Trapezoid:
https://www.youtube.com/watch?v=WBgRnFFGCuQ
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Area of a Parallelogram:
https://www.youtube.com/watch?v=k7iV42nkXc0
Area of a Rhombus:
https://www.youtube.com/watch?v=3Jx9gGpGbrA
Area Between Two Squares:
https://www.youtube.com/watch?v=NtAaclKesgs
Area - Rectangles, Triangles, & Circles:
https://www.youtube.com/watch?v=JnLDmw3bbuw
Area & Perimeter of Irregular Shapes:
https://www.youtube.com/watch?v=_e7j6rE7_Pg
How To Calculate Square Footage:
https://www.youtube.com/watch?v=aKcy-XE-LXM
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Area of a Kite:
https://www.youtube.com/watch?v=RhNeFsYHtE4
Area of an Equilateral Triangle:
https://www.youtube.com/watch?v=vIlWlauZV7E
Area of Regular Polygons:
https://www.youtube.com/watch?v=bwyYgCGNOQ4
Area - Hard Math Problem:
https://www.youtube.com/watch?v=s0gu-LlEM8M
Area - Shaded Region:
https://www.youtube.com/watch?v=yw2cYaPb-Go
Circles - Area, Circumference, Radius:
https://www.youtube.com/watch?v=D4nGkWOPb6M
Final Exams and Video Playlists:
https://www.video-tutor.net/