Circles - Area, Circumference, Radius & Diameter Explained!

This basic geometry video tutorial explains how to calculate the area and circumference of a circle given it's radius and diameter. This video contains a few examples with word problems. This video also explains how to calculate the circumference given the area, and how to calculate the length of the radius and diameter given the area and circumference of the circle.

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/