Angles in a semicircle are always 90 (Theorem and proof)

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Friends,
This is a Math video. This is our eighteenth webisode (WB-18) on "Series 10 - Circles".
In this video, we will see that all the angles subtended in a semicircle are always 90. Then, we will prove this theorem.
This video is suited for class-9 (Class-IX) or grade-9 kids.
Cheers,
Friends at Rising Pearl

[@yashh2119]

Thanks a lot Sir , i really found this one helpful :D

[@dostotussigreatho]

Yash, You are very welcome! Cheers,

[@preyaanray8418]

I am so impressed by this video , cleared all my doubts , I usually don't comment on videos but your great explanation compelled me , thank you , do more videos like this.

[@dostotussigreatho]

Hi Preyaan,
You are very welcome! You made my day! Thank you for those kind words. I very much appreciate it. I try to explain these Math concepts in as much a simple way and in as fundamental manner as I can so that all every student can understand them and remember them. I am glad you liked and enjoyed watching the video. Please do check out my other videos and let me know what you think. It would be great to hear your feedback. More videos are coming soon!
Cheers,

[@preyaanray8418]

dostotussigreatho what is your emal id so i can contact you with dubts

[@Aamir__781]

Thanks 👍

[@sujatasavalkar5352]

Explanation was really good make more videos....

[@dostotussigreatho]

Hi Sujata,
Thanks for your feedback. I very much appreciate it. I have just recently updated my website at
www.risingpearl.com
Pls check it out when you a moment and let me know your feedback. Thanks again! Cheers,

[@shankarprasadbiswas3105]

Thanks sir for good explanation of this theorem in much simpler way.

[@dostotussigreatho]

Hi Shankar,
You are very welcome!
Cheers,

[@himangipandey3914]

Thanks sir really good explanation 🙏

[@dostotussigreatho]

Hi Himangi,
You are very welcome! I am glad you liked the video and found it helpful. Pls do check out some of my other videos and www.risingpearl.com. You may find them helpful as well.
Thanks again.
Cheers,

[@dostotussigreatho]

Hi Himangi,
I wanted to share that last month, I have launched a new website called dailymathpro.com/.
I post one new Math question everyday. Anyone can answer the question in the comments section. Everyone is encouraged to do so. It is free to use and no registration is required.
The very next day, I post the answer to the previous day's question and the new question for that day.
This will greatly benefit anyone who is interested in Math and is preparing for competitive exams. The questions are designed to make student think outside the box.
Pls do check it out as you may find them helpful.
Cheers,

[@ScatteredMonolith]

Which program do you use for these tutorials? Also, thank you so much, I needed this quite badly for my maths revision!

[@poonamagarwal7273]

Thank sir

[@dostotussigreatho]

Hi Poonam, You are very welcome! Glad you found the video helpful.
Cheers,

[@amvhighlights89]

Thanq Now I understood

[@dostotussigreatho]

Glad you liked the video and found it helpful! Cheers,

[@shraddhapatel4576]

Bahut ghatiya video Hai Thodi acchi to dalo

[@mustafahusain2164]

These videos help me a lot during my exams.
Keep up the good work.

[@dostotussigreatho]

Hi Mustafa,
Glad you liked the videos and found them helpful!
Cheers,

[@mustafahusain2164]

+dostotussigreatho np

[@kashifalam7118]

Nice

[@devilking1366]

subtended means

[@dostotussigreatho]

One way to think about it is angle made by a line-segment at any point. Then we say angle "subtended" by the line-segment at that point. Hope it helps! Cheers,

[@skkumar1512]

Soo cool

[@dostotussigreatho]

Hi Sk,
I am glad you liked the video and found it helpful! Thanks for your feedback.
Cheers,

[@amvhighlights89]

Theorm jo samjha usko pata chal gaya

[@dostotussigreatho]

True. Hopefully most of the people who watched the video got to learn about the theorem. Cheers,

[@md.tanjilurrahman5949]

bro , is angle pab is also a semi circle ?????

[@archanagupta3099]

No

[@ritushnasarmah6949]

👏👏👏👏👏

[@ranveersingh7802]

i am having difficulty in solving question related to circles and quadrilaterals

[@kailashjoshi4598]

same

[@unknown.9177]

@@kailashjoshi4598 bhai usse 5 year phle problem tha😂😂😂

[@musabkhan6160]

sir u r explaining fabulously...but u r repeating frnds and doston a lot.its good but reduce the no. of times u say it...

[@shraddhapatel4576]

Essay he maths sums

[@JahangirAlam-vd2hg]

Dear Sir, You talked too much. This theorem could have been proved in a much shorter video presentation. Anyway, the presentation was good. May be you tried put emphasis in every detail of the theorem.

[@miftahullah2142]

not randomly point
its called arbitrary point

[@musabkhan6160]

ur channel name is dosto so okk no prob.

[@ahmadnaeem8302]

Please Explain this theorem in terms of vectors

[@UpadhowmyaSowda]

That we have to show man

[@tamimhassan9228]

Bhai ya to Hindi ya English mei bolo
ye kya ghatiya English and Hindi mixture kiya hai
aapko Hindi and English mix karke bolna nahi aata

[@abdullahabdullateef4973]

English pls

[@adadarsh3319]

Vioce ovrr irritating kar diye thaths why basically dislike kar diya hope you samjhegaa😉😂😂🤮🤮🥱🥱🥱

[@raajahame1189]

Aawaz achi nhi hai

[@AsadKhan-ri8qi]

i no understand pls help google

[@AsadKhan-ri8qi]

ok

[@nehadubey8901]

Nice video I have understood