Circles In Geometry, Basic Introduction - Circumference, Area, Arc Length, Inscribed Angles & Chords

This geometry video tutorial provides a basic introduction into circles. It explains how to calculate the area of a circle as well as the circumference of a circle. It also explains how to calculate the arc length of a sector as well as the area of a sector in a circle. it explains the difference between the radius, chord, and diameter of a circle. It mentions how to calculate the inscribed angle as well as the measure of the intercepted arc. It discusses how to calculate the area of the shaded region given a right triangle inscribed in a circle.

Circles - Chords, Radius, & Diameter:

Lines, Rays, Line Segments, & Angles:

2 Column Proofs - Cong. Segments:

Triangle Congruence - SSS, SAS, ASA:

Central Angles and Circle Arcs:

___________________________________
Tangent Lines and Secant Lines:

Circles - Central and Inscribed Angles:

Tangent Tangent Angle Theorems:

Inscribed and Circumscribed Polygons:

Power Theorems - Chords, Secants, & Tangents:

Circle Theorems:

_________________________________
Two Column Proofs With Circles:

Circles Review - Geometry:

Incenter, Circumcenter, and Orthocenter:

Distance Between Point and Line in 2D & 3D:

Area of a Triangle With Vertices:

________________________________
Coordinate Geometry:

Geometry Review - Study Guide:

Geometry Final Exam Review:

Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[aishwaryasubramanian]

Hey guys, here's a cool study tip: watch these BEFORE the teacher's lesson. This is because, when you watch this before the lesson you get a nice idea of what's coming up and you will be less intimidated. You can also understand the teacher better since the teacher will probably be going at a faster pace whereas here, you can pause and process info. This is great for people who can't focus/understand stuff in class.

[gelgel]

How I look at circles when I was a kid will never be the same anymore ⭕

[sasha]

Who’s watching this the morning before a test??😭😭

[kristofkopecky]

From Chemistry to Geometry this guy is a life saver

[SlowedByCinnamxn]

This Dude, not Only Uploads Science Videos, but he Uploads a Lot of Helpful Math Videos. What a Legend he is.

[lrosales]

Hello! It might not reach you due to the overwhelming comments you receive throughout all your lecture videos, but I wanted to take the time and thank you for providing so many educational videos, you have no idea how much this is helping me, it will even help me get through college. This is not much, I know, but remember that you have helped so many, and without you, many wouldn't be where they wanted to be (in terms of careers and education) Don't ever stop making more videos!

[johnclement]

This is how you teach mathematics and how it's suppose to be broken down thank you so much wow!!!!

[georgesadler]

MR. Organic Chemistry Tutor, thank you for another incredible video/lecture on Circles in Geometry and the Basic Introduction to Areas, Circumference, Arclength, Inscribed Angles and Chords. All these topics are illustrated by diagrams/shapes and old fashion Formulas. The Formulas can also be derived using basic and Advanced Mathematics.

[davidgago]

This would be a good review video from my students to remember the difference between all of the parts, and theorems regarding circles. Well Done!

[jafrajulsiruelo]

thanks for this video, although it's fast paced i really appreciate it that you're not spoon feeding and that u made it really clear.

[razerskrythe]

I learned more in a 18 minute video than a 1 hour and 30 minute double lesson

[latashawilliams]

I saw that pythagorean triple from a mile away. great video. his explainations are very clear

[hyacinthokafor]

Honestly the person or people who made math is on another level

[reelmonalisa]

God bless you 😭 I wish you were my teacher!! Appreciate your work

[sergeantkrissy]

Im a visual learner, like i legit cannot understand if the teacher is just explaining it rapidly and stuff, and here, it really helped me out, im doing my final exam tomorrow and this was the only concept i didnt understand until now, i got to see it done, while explaining and examples, and i dont hear like "get it now? ok so now you try" its more like "ok we will do this together"

[jacintaganema]

You're better than my STEM Math teacher .You're such a cool guy. Thank you very much .

[doierry]

this is so cool.. I have an exam in a month this explained the topic that Im lacking in so

[giovannasurace]

I used these videos back in geometry freshmen year of high school to now studying for the GRE my junior year of college. I think I would be a failure without these videos

[crazethebosspurple]

Who else is looking at this 5 min b4 a test

[saintelyy]

Awesome video! I learned a whole bunch of stuff