Thank you so much for this video! I am in college and with the whole virus thing its really hard for me to keep up with math and really understand the problems, but this really really helped!
That will vary as x varies. If you chose the minimum or maximum values for x, you get an extremely flat triangle with an extremely small angle. In the middle you get more typical triangles. If you set a value for x, you can use trig to find the exact angles. My approach would be to drop an altitude to form two right triangles. We know the hypotenuse and the right angle, and we know that the long leg of one is the same as the short leg of the other, and we know the sum of the other legs. Should be easy from here. ;)
If you know all numerical sides of a triangle, you can use the trig formula to find any of the angles. c² = a² + b² - 2ab * cosC Solve for cosC to get the angle.
Thank you so much my teacher didn’t teach us this and she gave us the assignment but I didn’t understand so I came across this video and I got a 100 in the assignment thank you so much
This is just to find out the range of values that x could be for this to be a triangle. So x can be any value between 7/3 and 9 for this problem. If you choose any value for x such as 20, then you would get the sides to be 21, 41 and 73. You cannot form a triangle with these lengths. So x=20 is not a solution. The length of 73 is too long.
Amazing explanation! Thank you. Sadly it didn't help me understand how to use this concept with the squeeze theorem to find limits of two-variable fuctions, but I learned something new.
Yes, that would be an isoscoles triangle. (You can also have a triangle with all 3 sides equal to each other, that would be an equilateral/equiangular triangle, but that would not work for the triangle in this problem). You can find the value where 2 sides are equal by setting 2 sides equal to each other. 2x+1=4x-7 2x=8 x=4 So if x=4, plug the value in and you get the 3 sides to be 9, 9 and 5. Try with another set of sides. x+1=4x-7 3x=8 x=8/3 So if x=8/3, plug in the value and you get the 3 sides to be 11/3, 11/3 and 19/3. It will not work for the other set of sides because 2x+1 is greater than x+1 so those sides won't be equal and x cannot be zero for this to be a triangle.
Maybe you were looking for a video relating the angles not the sides in a triangle? Something like this one? Hinge Theorem (Geometry) ua-cam.com/video/aEecHBieC1E/v-deo.html
not me being here during my geometry final😍
OMG!OMG!OMG! THANK YOU!THIS HELPS ALOT TO ME!!
You’re welcome Reika!
I owe you my life good sir. The concept clicked in my mind when you did the overlapping number line example. Thank you very much.
just want you to know your work does not go unappreciated
Damn don’t be mean 😪
@@24thoughiiijong79 wdym??
@@24thoughiiijong79 reading comprehension
Thank you so much for this video! I am in college and with the whole virus thing its really hard for me to keep up with math and really understand the problems, but this really really helped!
Glad to hear my video helped you Ayanna!
Thank you. God bless you!
I like that you said great job at the end. Made me feel better about understanding. Thanks Mr. Mario!
You’re welcome David!
Thank you. I have a midterm tommorow.
Good luck on your midterm Lucas! Report back if you want and let us all know how you did!
How can you find the ° for each angle?
That will vary as x varies. If you chose the minimum or maximum values for x, you get an extremely flat triangle with an extremely small angle. In the middle you get more typical triangles. If you set a value for x, you can use trig to find the exact angles. My approach would be to drop an altitude to form two right triangles. We know the hypotenuse and the right angle, and we know that the long leg of one is the same as the short leg of the other, and we know the sum of the other legs. Should be easy from here. ;)
If you know all numerical sides of a triangle, you can use the trig formula to find any of the angles.
c² = a² + b² - 2ab * cosC
Solve for cosC to get the angle.
super helpful once again thank you so much
Happy to help!
Thank you helped me get my grade up from an f
And I’m also subscribing to this channel
Hi Johnny
Thank youuuu!!!!
tomorrow has test!
You’re welcome! Good luck on your test! Report back if you want and let us all know how you did.
U are the best.
My math teacher spent over an hour explaining this and I still didn’t get it. This man took four minutes. Thank you.
Lol 😂
Thank you so much
Great work Mario. Keep it up.
Omg thank you so much! You teach better than my math teacher at my school😭😭
You are so welcome!
thank you so much
Thank you so much my teacher didn’t teach us this and she gave us the assignment but I didn’t understand so I came across this video and I got a 100 in the assignment thank you so much
If ineequalty traingle AB. side is 160sqft and BC is 170 sqft. And the AC is. 180 sqft what will be. The total eara of traingle?.
Use This formula: Heron's Area Formula for Triangles ua-cam.com/video/_x-HpREXJmg/v-deo.html
thank you johnny suns this was extremely helpful
Who is Johnny suns
Thank you sooo sooo much, this helped a lot for my algebra exam
Can’t I just find x then plug it in and see what each side is equal to therefore I could just see how much each is worth
This is just to find out the range of values that x could be for this to be a triangle.
So x can be any value between 7/3 and 9 for this problem.
If you choose any value for x such as 20, then you would get the sides to be 21, 41 and 73. You cannot form a triangle with these lengths. So x=20 is not a solution. The length of 73 is too long.
That was very helpful, thanks!
Glad you liked the video Ankur!
But this isn't what im looking for but this is useful information thanks teach
THANKS DAWG
THANK YOU SIR MARIO FOR THE HELP, YOU HELP MANY STUDENTS IN THE WORLD, YOUR THE BEST TEACHER I'VE SEEN
Thank you sir 😭
Most welcome
This video is very helpful Thank you sir
Thank you for this 😊
You’re welcome em horizon!
Going to take my final tomorrow , see you on the other side Mario
I looked up my math answers I didn't know how to do, but wanted to know how to cause it annoyed me that I didn't. This helped make me understand :)
Amazing explanation! Thank you. Sadly it didn't help me understand how to use this concept with the squeeze theorem to find limits of two-variable fuctions, but I learned something new.
The sum of two sides of a triangle can be equal to the third side when ө = 180 degree. Can we use this case to solve the problem g
If one angle is 180 degrees then it will no longer be a triangle. The sum of any two sides has to be greater than the third side.
This is only for four minutes and my knowlege is now greater than 1 hour of math....
Glad my video helped you so quickly Antonio!
If it was given triangle is obtuse then ???
Yes this method will work for an obtuse triangle as well Pankaj!
Who else is watching this WHILE taking the quiz
right here
@@starchsakamaki2671 lolllll what quiz? Geometry 5.1-5.5 lolllll
@@starchsakamaki2671 are you sure ur not in my class lmaooo I took the quiz like at the same time
You already know!!! lmao
Me
mario you absolute legend
This video helped more than sitting in class for a week
Glad my video helped you Dave!
oh lord, Mario is the man. I have a midterm tmrw and this is the only thing I was unsure of. thank u
You’re welcome Jacob! Glad my video helped you prepare for your midterm!
Thank you 💖
You are so welcome
I did the same thing but my xes is 0, - 10 and possitive 4. I don't know how does it works. Anyone can help? 🥺
Can you have equal amounte
Yes, that would be an isoscoles triangle. (You can also have a triangle with all 3 sides equal to each other, that would be an equilateral/equiangular triangle, but that would not work for the triangle in this problem).
You can find the value where 2 sides are equal by setting 2 sides equal to each other.
2x+1=4x-7
2x=8
x=4
So if x=4, plug the value in and you get the 3 sides to be 9, 9 and 5.
Try with another set of sides.
x+1=4x-7
3x=8
x=8/3
So if x=8/3, plug in the value and you get the 3 sides to be 11/3, 11/3 and 19/3.
It will not work for the other set of sides because 2x+1 is greater than x+1 so those sides won't be equal and x cannot be zero for this to be a triangle.
This makes me realize how much my maths teacher really is bad at her job
I love you
yo where the fuck is mario judah
What if there were only two inequalities in the triangle ?
someone get this dude a rag lol
I am so confused
1 word: quarantine
im still so confused
i suggest that you talk slower but it's fine i kinda got lost in the middle of the discussion.
This ain’t the triangle inequality...
Maybe you were looking for a video relating the angles not the sides in a triangle? Something like this one? Hinge Theorem (Geometry) ua-cam.com/video/aEecHBieC1E/v-deo.html