Why is a Triangle with sides 3, 7, 11 IMPOSSIBLE?

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Triangle Inequality Theorem - example problem.
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Опубликовано:

18 апр 2023

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Комментарии : 34

@85Handle85 Год назад

Great and fun reviewing In math I always got straight A s constantly, probably because I loved it. And I would spend any amount of time required to figure out every math equation. But that was 40 years ago, your simple problems I can always figure out by pausing the video and doing the equation. But,,, these questions should have been almost mental math only and done quickly. No way could i ever do the math that I once did. THANKS, now I’m hooked on your videos and looking for my old algebra books in a box in the garage I’m on the case now, it’s going to be fun as you already know because it’s how we are wired. Never taught math but I was always the class tutor starting in 5th grade. Good job thanks

@bottlesbob Год назад

For any side in a triangle, the sum of the other two sides must be greater.

@NexusGuru Год назад

short answer is because of the triangle inequality theorem. This theorem is basically this , the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

@tonitalas1757 Год назад

7+3c

@tunarolls68 Год назад

Right

@kennethwright870 Год назад

The sum of the legs does not exceed the length of the hypotenuse

@bottlesbob Год назад

Hypotenuse would require a right angle.

@kennethwright870 Год назад

@@bottlesbob disagree, but thx for your reply ☺️

@Johnnycdrums Год назад

I'd like to see what the alarm on the screen says, when programing it into a computerized machine tool. I'm guessing It could be any number of alarms, one of which having something to do with tool nose inability to reach a proper end point. Thankfully, the machining process will not even start because of built in look ahead features.

@lisabaiocchi1228 Год назад

What is a real triangle beside the picture of a 🔺

@ofdlttwo Год назад

I’m confused. If I cut 3 pieces do wood in those dimensions and glued them together, would they not make a triangle?

@discobear5752 Год назад

You could glue the 7 piece directly to the 3 piece in a straight line, it would make a piece 10 units long, which is less than the 11 piece. These three pieces can never form a triangle. The best you can make of it is a 3 sided shape which is open on one end.

@bottlesbob Год назад

Good question. Would make a great experiment. Try it. You could use cardboard and scissors.

@U_Kamrc Год назад

Two circles with r=7 in A and r=3 in C do not touch, so B is not possible.

@RM-zu2nh Год назад

It might not be a right triangle, but it could be a triangle of different measure. Some can find the area with a= sqrt of s(s-a)(s-b)(s-c) where (a+b+c) /2 =s. Has anyone seen this?

@realSamAndrew Год назад

It's impossible. No need to search.

@susanm1109 Год назад

The sum of any two sides will always be greater than the remaining side. In this case 7+3 is not greater than 11.

@thatomofolo452 Год назад

7greater> then 3less then

@tomtke7351 Год назад

if the 2 sides of 3 and 7 were straight-lined they would total 10. The side of length 11 would exceed this 10.

@stephenpaul3440 Год назад

7+3

@janeh5949 Год назад

I understand that that is not a real triangle. I’d like to know the name of the shape that it is.

@JRJunior8624 Год назад

Yeah I was going to say, that is not a right angle triangle

@ra15899550 Год назад

Impossible for a right triangle but not irregular triangle.

@Aqua.man045 Год назад

Because the Pythagorean theorem exists.

@maskedmarvyl4774 Год назад

.....Because it defies the Pythagorean theorem?

@Kedatgahbelu12 Год назад

Pythagoras only works on right angle triangles. You can't use pythagorean theroem with scalene, acute and obtuse triangles right out of the box.

@maskedmarvyl4774 Год назад

@@Kedatgahbelu12 , The drawing looked like a right triangle to me.....

@Kedatgahbelu12 Год назад

@@maskedmarvyl4774 I see. However, people use the right angle symbol to show it is a right angle triangles, otherwise, we will end up having to argue all 2 leged creatures are humans.

@maskedmarvyl4774 Год назад

@@Kedatgahbelu12 , 2 leged creatures give me the creeps.......

@Kedatgahbelu12 Год назад

@@maskedmarvyl4774 not so fast. Some 2 legged creature are down right adorable, while the other 2 legged creatures are cancerous to this world. Birds are good, human not so much.

@ManuelGarcia-ww7gj Год назад

The square root of 58 is NOT equal to 11.

@lisabaiocchi1228 Год назад

Here is a funny I quit school on because of math when you talk about math, speak English I was lost and hide weeds I never grab the concept of math

@Kedatgahbelu12 Год назад

Maybe you never had a good teacher that inspires you or made you more curious about it. I had good teacher in 2nd, 3rd, 4th grades. On my 5th grade, I had a terrible, dregs of a math teacher, almost made me lose interest in math in 1 year. Luckly, I bounced back. I had the same fantastic math teacher for 6th, 7th grade that made hungry for more information and challenged me like never before. That teacher was a dedicated teacher who was working close to 12 hrs a day, but always manages to tutor anyone on his free period.

@lisabaiocchi1228 Год назад

@@Kedatgahbelu12 I definitely agree. I have problems math since first grade I got put back in second and third grade because of math I still try to learn it