Circle Theorems involving Angle Measures, Inscribed Angles, Intersecting Chords, Secants & Tangents
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- เผยแพร่เมื่อ 6 ก.พ. 2025
- Learn how to find various angles when working with circles in this free math video tutorial by Mario's Math Tutoring. We discuss central angles, inscribed angles, angles formed by intersecting chords, and angles formed by secants and tangents to a circle.
0:20 Formula for Finding the Measure of the Arc Given Central Angle
0:49 Formula for 2 Intersecting Chords Not at the Center
1:28 Formula for Inscribed Angles Where Vertex is On the Circle
2:01 Formula for 2 Secants or 2 Tangents or a Secant and a Tangent
2:31 How to Remember the Equations Depending on Where the Vertex is Located
3:18 Example 1 Finding Central Angle
3:36 Example 2 Finding Angle Formed by 2 Chords
3:56 Example 3 Finding Angle Formed by 2 Chords
4:30 Example 4 Finding the Inscribed Angle
4:42 Example 5 Finding Angle Formed by Tangent and Chord
4:56 Example 6 Finding Exterior Angle Formed by 2 Secants
5:08 Example 7 Finding Exterior Angle Formed by 2 Tangents
Related Videos:
Segment Length Formulas in Circles
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Thanks a lot!
Your 5 min video explained everything I needed to know, that my teacher took a whole 45 mins for.
You’re welcome! Glad my video helped you!
bless your soul mario u clutched up for me twice just minutes before a test
Thanks for showing all of the scenarios in one video!
You’re welcome!
Thanks!
Thanks for the Super Thanks!!!
This really helped a lot Mario!
Glad my video helped you Michael!
this really made my math test easier! Thanks so much!
You’re welcome Ethan!
This really helps me a lot, but I have a hard time seeing your video because the marker is too light, can you use dark black markers?
So clear, and so helpful. Thank you.
Wow! 😮 This is really helpful
Awesome! Glad you found the video helpful!
This helped me a lot. My test is in 10 mins HAHAHAH
felt that
You are saving my geometry grade thanks so much
Thank you. You explain it so much simpler than my son's math text book.
Thank you. I appreciated this being straight to the point. God bless you and your family.
Could you start adding a mathematical explanation as to why these formulas work? I think it would help tons of people to actually learn and understand the content, rather than just copy and paste from memory.
Thanks for the video! let's all study hard and work for our dreams!
thanks again for helping me clutch my final... 1 year later now in sophomore year and im back here watching ur vids, lol!
Glad to hear my videos have been helping you Chris!
Really fantastic, I learnt about new things from this video, really helpful for understanding.👍👍
Thank you very much sir!!!!
+Kim Lumangcag your welcome!
awesome
Hello, how can I contact you for some tutoring for my daughter...thanks
I've learned a lot of things
+Kim Lumangcag glad my video helped you .
+Kim Lumangcag your welcome
e x p l a i n it like our other math lord and savior S A L K H A N
The thumbnail made me laugh