kinda confused me because he said to multiply both sides by 360 but he didn't multiply the central angle (52). But overall, the solution is correct i tried checking my answer if the theta and the radius matches the arc length using a = θ π r ² and it does! great video! ------- 360
He multiplied 360 with the fraction. When you do this, it basically removes it. This is because you are dividing it by 360, then multiplying it by 360.
I’m not sure what you are asking my friend. We can find the radius given arc length and angle. We can find the angle given arc length and radius. We can find the arc length given angle and radius. We can find the radius given angle and sector area. We can find the sector area given angle and radius. We can find the angle given sector area and radius. Which of these six things would you like to learn about?
The procedure would be exactly the same as what I show in the video. Just substitute 29 instead of 26 and 17 instead of 19. I believe in you. I know you can do it.
What if all you have is the arc. I have a curved steel bracket and need to come up with the stave angles. I’ll need to determine what percentage of a circle my arc is so I need to determine the radius but all I have is the arc length and the chord length.
That’s not enough information to determine the arc length. You could have a small circle with a 30° angle and then you could have a big circle with a 30° angle. The arc lengths would not be the same.
@@flordelizaopulencia8261 It sounds like x and y are the coordinates of points on a circle and they want you to find the radius. One moment. Let me find the video for you…
Couldn’t find the video so I will try to explain in text. The equation of a circle centered at the origin is x2 +y2 =r2. If x is 3 and y is 4 you have 3 squared plus 4 squared equals r squared. This gives 9 + 16 = r squared. This means 25 = r squared so r =5 after taking the square root.
That’s not enough information to determine the radius. For example you could have a 30 degree measure on a ⭕️ with radius 8 and you could also have a 30 degree measure on a ⭕️ with radius 10.
I just checked my answer by plugging my radius back into the arc length formula and I am getting 19 as I should. Try plugging your radius in and see if you get 19. I don’t think you will. If you share your calculations, I will tell you where you went wrong.
![Radians, Arc Length & Sector Area of a Circle - [2-21-1]](http://i.ytimg.com/vi/lcuxPNBXhlY/mqdefault.jpg)
![Radians, Arc Length & Sector Area of a Circle - [2-21-1]](/img/tr.png)
this man is a saint for everyone from middle school to college
Damn he really made a video of my question, I really appreciate that, thanks alot
I'm glad you asked about this because this is part of my exam
Great! This is what i'm looking for the past 1 hour
Thanks Sir ⭐️❤
Yay! Glad I could help. 😊
awesome. ...boy did i LOVE this. !! many THANKS to YOU. a GREAT help.
Yay! That makes me glad. 😊
Thank you so much for this video I finally understand now
Yay! So glad I could help. 😊
Thank you Sir! 🙌
You are super super welcome! 😊
You are intelligent. Thanks for you man
Thanks Mr.HNH !
You are so welcome! 😊
This is a great explanation.
Nice work❤
I appreciate the feedback! 😊
Thanks!
@@aaronmcdowell1587 you are super welcome! 😊
kinda confused me because he said to multiply both sides by 360 but he didn't multiply the central angle (52).
But overall, the solution is correct i tried checking my answer if the theta and the radius matches the arc length using a = θ π r ² and it does! great video!
-------
360
He multiplied 360 with the fraction. When you do this, it basically removes it. This is because you are dividing it by 360, then multiplying it by 360.
@@knownstranger3115 Thank you!
Thank you for this video. It is very helpful to me
You are welcome. So glad I could help. 😊
Hi sir , can you please do for me an E.g of finding a radius and an arc length given the area sector and a feta .
I’m not sure what you are asking my friend. We can find the radius given arc length and angle. We can find the angle given arc length and radius. We can find the arc length given angle and radius. We can find the radius given angle and sector area. We can find the sector area given angle and radius. We can find the angle given sector area and radius. Which of these six things would you like to learn about?
Thank you so much
I was getting confused on this and this makes it clear
You are very welcome. Glad I could help. 😊
This helps but what would the answer be if the arc length was 17cm and the angle was 29 degrees?
The procedure would be exactly the same as what I show in the video. Just substitute 29 instead of 26 and 17 instead of 19. I believe in you. I know you can do it.
Thank you! I have a math test and I want to get a high grade during the last month of school.
Good luck! 🍀 You got this!
@@MrHelpfulNotHurtful thank you! :)
Thanks a lot!
You are super welcome. 😊
He's great
I really appreciate your feedback. 😊
THANK YOU
I got your back. 😎
im far behind on class work and this video helped me understand it perfectly thank you so muchh
Yay. I got your back! 😎
Bro you are great
Yay! It feels good to be appreciated. 😊
Thank you so much, this helped a lot! :))
TSB_Hayd3n Yay! You are quite welcome. 😊
You could also just do arc length*360 over angle*2 pi
Thanks!
Genius, thank you
Yay!! You are welcome. 😊
What if all you have is the arc. I have a curved steel bracket and need to come up with the stave angles. I’ll need to determine what percentage of a circle my arc is so I need to determine the radius but all I have is the arc length and the chord length.
I’m sorry my friend. I don’t know how to do that. 😔
How about finding the measure of central angle given the arc length?
Watch problem #1 on this video. Arc measure is the same as central angle. ruclips.net/video/Ll1D6C4FWYE/видео.html
bro you really got my back
I really do! 😎
I got 131.53
lol saem
Decent
😊
does the equation differ if you're given a major arc instead of a minor arc?
because in the video, the 19cm is from the minor arc.
Major vs. minor makes no difference. 😎
legend
😊😊😊
Sir how do you find radian when radius and chord is given?
ruclips.net/video/1-b12YoEYeI/видео.html
How will we find radius if only arc length is specified is 13 and central angle is theta.
That’s not enough information to find the radius. You need to know the angle measure.
But what if you don't have the arc length??
I literally only have the angle
That’s not enough information to determine the arc length. You could have a small circle with a 30° angle and then you could have a big circle with a 30° angle. The arc lengths would not be the same.
What if the unit has squared on it? Can you teach me how can I remove that?
Sounds like a different type of problem. Type the whole problem into your next comment.
thanks!!
You are super welcome! 😎
What is my arc length was 5pie so I just turn the 5pie to 15.7?
That works. 😊
And if you dont the the central angle?
What are you given besides the arc length? Arc length alone is not enough information.
how can i find the radius if the given are x and y values?please help...
X and y values of what? Also, what other information are you given? Central angle perhaps?
@@MrHelpfulNotHurtful no other given,but the topic is related to reference angle and the question is find the missing value?
example of question is find the missing value? given:x=4,y=3,r=? how can i solve it? please help...
@@flordelizaopulencia8261 It sounds like x and y are the coordinates of points on a circle and they want you to find the radius. One moment. Let me find the video for you…
Couldn’t find the video so I will try to explain in text. The equation of a circle centered at the origin is x2 +y2 =r2. If x is 3 and y is 4 you have 3 squared plus 4 squared equals r squared. This gives 9 + 16 = r squared. This means 25 = r squared so r =5 after taking the square root.
what if sir only the degree were only given and then find the length of the arc..
That would not be enough information. They would need to give you a degree and a radius in order to find the arc length.
How about the given is only the degree measure?
That’s not enough information to determine the radius. For example you could have a 30 degree measure on a ⭕️ with radius 8 and you could also have a 30 degree measure on a ⭕️ with radius 10.
hey the radius of the circle is 413.24 cm your answer is wrong
I just checked my answer by plugging my radius back into the arc length formula and I am getting 19 as I should. Try plugging your radius in and see if you get 19. I don’t think you will. If you share your calculations, I will tell you where you went wrong.
Can we find the radius only with arc length?
No. You need the degrees too.
what if arc lenght is 5 pi over 3
The steps would be the same. What part is confusing you?
what if there's no given r/radius?huhu
That’s what this video is showing. You are not given the radius so you have to find the radius. Do what I show in the video.
pov: kilala mo si sir alexander HAHAHAHHA
😄
There’s a much simpler explanation…
i got 131.5
so i divide it by π and its 41.8 now
@@joshuekarloanino4468 awesome 😎