Im using this guy for my GCSES, much better than my teacher. You are helping students get the grades they deserve! edit:results day. I got a grade 8 for my maths gcse. Thank you Maths Genie!
Hi, I have a question. Aren't the cyclic quadrilateral theorem and the angels from the same segment theorem contradictory? Because you make a quadrilateral in a circle by drawing two angels from the same two points, just with one below the chord and one above. So both theorems should apply...
super void no, the angles in the same segment have to go in the same direction (if that makes sense?) When you draw a chord and split a circle in two you get a major segment and a minor segment - angles in the major segment and equal and angles in the minor segment are equal.
It's a really awsome explanation of maths it helped me a lot in icse exam thank you so much. I recommend everyone to see this as it's the perfect experience for the exam students😘😘
Theorem 6 that "2 radii make an isosceles triangle" is absolutely true because radius in the same circle is always the same (the property of the isosceles triangle) :))))
coolstuff! i noticed on that last one, we could also just halve 55 when we knew it and the missing angle shared endpoints. learned from your lesson. thanks!
For future reference. Could you clarify the rules for what qualifies as a cyclic quadrilateral? because all the vertices have to touch the circle and the quadrilateral inside doesn't count as one. So it's very easy to apply the wrong rules when finding the angle. Thanks
"Angles in the same segment are equal" "Angles in a semi circle are always 90deg" These are basically the same theorem; the segment in the semi-circle is the diameter. I've neither tested nor researched this, but I'm willing to bet that if you had a segment that was half the diameter, the angle produced would be 45deg.
at 9:12 you could have used the theorem, "The angle at the centre is twice the angle at the circumference". Instead of using isosceles and triangle facts.
I'm late, but: An isosceles triangle is made up of two angles that are equal, and one that is different. As we already know that the top angle is 125°, and that all angles in a triangle add up to 180°, we just have to minus 125° from 180°. We get 55° which we then divide into two to find x.
maths genie why is that when you gave us the questions after you said the theormes, on the last question that had the cyclic quadrilateral .....why did you use the circumfrence as a point for the shape instead of the point at the center ...is it because the center is clearly obtuse or is it cause of another math principle
i dont get it ...cause if the y of that same question is 160 then it means the cyclic theorem doesnt apply because then the sum of the opposite angles is 260 not 180 someboody answer me
Im using this guy for my GCSES, much better than my teacher. You are helping students get the grades they deserve!
edit:results day. I got a grade 8 for my maths gcse. Thank you Maths Genie!
Hi, do you think you would have got that grade if it wasn't for him?
Daily Football considering he posted this, the answer is obviously yes
congrats on the 8 i guess :)
Very true my teacher is not that good
Goodluck for all your maths exams 😂♡
Thanks 🖤
thx n u too
Amen
Amen
Thanks 🙏🏾
My maths teacher uses your videos to explain things in lessons so he doesn’t have to do it himself
I've been trying to understand this for months... You've just explained it in a 10 minute video, thanks so much 😭
This channel is absolutely saving my life rn
2hrs :)
Get more on circle theorems from this playlist. The link is:
ruclips.net/p/PLYwM9CzPztOkE8m2zrJP_bZHEEjtzgHGX
Yeah I will definitely have a look at doing that this weekend. Thank you for your comments.
Hi, I have a question. Aren't the cyclic quadrilateral theorem and the angels from the same segment theorem contradictory? Because you make a quadrilateral in a circle by drawing two angels from the same two points, just with one below the chord and one above. So both theorems should apply...
super void no, the angles in the same segment have to go in the same direction (if that makes sense?) When you draw a chord and split a circle in two you get a major segment and a minor segment - angles in the major segment and equal and angles in the minor segment are equal.
6:14 isbt y 80 and x 40
@@abdalrahmanamrmostafa1975 I thought that at first, but I think a cyclic quadrilateral has to have four points which touch the circumference.
Bruh you save my life, i have a final test tomorrow and i didn’t understand anything BUT now i do after i watched this video ONCE, love you ❤️
Thank you very much. I have a test coming up on Monday and I did not know
anything.
Thank you very much this really helped !
Thanks for sharing this video. I find it very helpful. You explained well and worked through the examples brilliantly.
proper badman my guy maths genie cheers for the video
Thank you for this! Very helpful
it was very helpful....thank you
It's a really awsome explanation of maths it helped me a lot in icse exam thank you so much. I recommend everyone to see this as it's the perfect experience for the exam students😘😘
very clear and discriptive.....nice
i'm studying for my cets(kinda like sats in the us). this was very helpful 👌💓
Sats are what you take when ur 10 years old
very nicely explained sir....impressive stuff
U helped me get through a a rough patch thnx u
Theorem 6 that "2 radii make an isosceles triangle" is absolutely true because radius in the same circle is always the same (the property of the isosceles triangle) :))))
nice and helpful thanks!
This video help me so much thank you 👍
Thank you so much, you're literally saving my life❤️
Thanks for such a nice video. It has now become very easy for me to understand this topic
not for me xdd
Thanks - will use this tomorrow with our MathCounts team
Thank you so much!! Really helpful!
Very well explained
Thank you so much sir
Nice, clear video. Thank you 🙏
coolstuff! i noticed on that last one, we could also just halve 55 when we knew it and the missing angle shared endpoints. learned from your lesson. thanks!
My teacher is good at explaining but I'm still watching to refresh my mind. Thanks!
we didnt need to know about ur teache being good, that was so irrelevant
Fantastic! I took screen shoots of each.
There was so many moments where my face just went 😲😲😲 and I got so engaged I wrote it down for myself (it’s currently spring break lol)
this was really great
woah this is rlly nice
For future reference. Could you clarify the rules for what qualifies as a cyclic quadrilateral? because all the vertices have to touch the circle and the quadrilateral inside doesn't count as one. So it's very easy to apply the wrong rules when finding the angle. Thanks
Thank you so much
Thx u help a lot
I love you
And Your a guy
Probably he also meant to say no homo
Good luck on your test tomorrow
Thank you so much 💕
🙌thank you so much
Thank you sm
Cyclic= Si-click
Thanks man you saved me
nice visual explainstion sir
This was and still is simple. It's just that students only come here a day before the test.
ouch yh thats me
Excellent teaching!!!!!!!!! Only thing I have a problem with is the writing.
Me in classroom:C’mon
,it’s just a circle .....l know it!!!!
....
One night before exam:surfs about circle everywhere.....😭😭
Thank u so much
nice
tysm!!!!!!
Thxs a lot man
"Angles in the same segment are equal"
"Angles in a semi circle are always 90deg"
These are basically the same theorem; the segment in the semi-circle is the diameter. I've neither tested nor researched this, but I'm willing to bet that if you had a segment that was half the diameter, the angle produced would be 45deg.
Nice video
Sick lick man
Do you have to memorise these for the exam?
good work
nice man
at 9:12 you could have used the theorem, "The angle at the centre is twice the angle at the circumference". Instead of using isosceles and triangle facts.
quick maths
Quick mafs
At 6:45 isnt angle y 80 amd angle x 40? If y is 160 then that doesnt add up 180
great
Do I have to learn all these rules; because in my maths lesson we were only taught 3 circle theorums
yes! these are all very usefull in exams
thank you so much but last sum's last step i don't understand
I'm late, but:
An isosceles triangle is made up of two angles that are equal, and one that is different. As we already know that the top angle is 125°, and that all angles in a triangle add up to 180°, we just have to minus 125° from 180°. We get 55° which we then divide into two to find x.
Thank
You
plz help in last step
maths genie why is that when you gave us the questions after you said the theormes, on the last question that had the cyclic quadrilateral .....why did you use the circumfrence as a point for the shape instead of the point at the center ...is it because the center is clearly obtuse or is it cause of another math principle
i dont get it ...cause if the y of that same question is 160 then it means the cyclic theorem doesnt apply because then the sum of the opposite angles is 260 not 180
someboody answer me
@@blupellkingras300 i'm late but that's a smaller quadrilateral in a bigger one. for it to be cyclic, ALL it's corners have to be touching the circle
Gday , is there not a mistake at 6:45 , isnt y =80 and not x ?
You are blind.
good lad
Nice video love the presentation actually I also dropped a video about circles
Thanks
audio.
i swear to god this guy is kavos
haha lol, white british has sismial accent
My computer cant handle this video...
Its lagging :(
Archit Gupta it's not your computer unless his voice is lagging too for you. For me his mouse is lagging
i actually hate this topic. its so confusing tbh
Hey maths genie, why is my son dead?
Hi
honestly my teacher is so bad how am i meant to learn from him just doing the questions on the board with no explanation before so annoying
That's why we are here😁
this wasn't very helpful