Do YOU find the perimeter? – Math problem

In this math video I (Susanne) explain how to find the perimeter of the figure. I show you a way how to solve this math puzzle. Mathematics tutorials for everyone!

00:00 Intro – Puzzle
0:31 Find the Perimeter
3:52 See you soon!

*My German Math Channel:*
​⁠ @MathemaTrick

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#maths #learning #puzzle

[MathQueenSusanne]

Hey math friends! If you’re enjoying this video, could you double-check that you’ve liked it and subscribed to the channel? It’s a simple equation: your support + my passion = more great content! Thanks for helping me keep this going – you’re the best!

[berndblumberg]

Practicing englisch and mathematics at the same time. Great!
Ich bin übrigens 66 Jahre alt, komme aus Deutschland und kenne viele deiner Videos.
Soweit ich es beurteilen kann ist auch dein Englisch fantastisch!❤️

[Relorchestral]

Very nice problem - with a surprisingly easy result, thank you!

[ChuckMoore-jg]

When I become weary of politics (aka "lying"), I enjoy taking a break with you, Math Queen. You call us "my lovelies" but, in fact, it is YOU who are lovely! That gets things started on a good note! Then, you use logic to approach seemingly difficult problems and thereby reduce them to things easily understood. Often I am able to see the solution straight away; but equally often, I puzzle over the problem until you begin your explanation. Then, I ask myself, "Why didn't I think of that?"

You are a jewel and I look forward every day to spending time watching you and listening to your calm approach to making mathematics simple. Thanks.

[ChuckV]

Gosh, I could listen to you solve math problems forever… you’re one in a googoplex!

[Sharp_Mann]

elegant and lovely! Thank you, Susanne!

[YesYouAreAbsolutelyCorrect]

Very proud that I solved it in my head stretching the figure graphically😊

[franciscomarchenag]

When I saw the solution, it put me a smile on my face. Great!

[kvkalaiji]

wow... simple explanation... love from INDIA...

[PhilipTa]

Very surprised this channel has less than a thousand subs.
The video quality is very good and although it’s a bit of niche subject, way more people should watch this.

[YUNIKARN]

That is so much FUN! Highly recommended - back to my simulation problem

[ReverendTed]

I did this one visually - if I add 4 and 3 for the length of the tallest side, I know 7 is "too much" by exactly the overlap, which is equal to the unknown vertical, so I can ignore it. Essentially, the x's cancel out.

[jamesr]

These videos are great - Susanne is awesome ❤

[BigBearStuff-yu]

Students bring these kinds of problems to me. I liked your approach.

[yvesinformel]

I found the horizontal one right away, but I was a bit puzzle with vertical ones, but as soon as you start explaining I got it and pause the video to find it

Really like your video

[andrewwalsh]

Or...
a) move the inner horizontal up, level with the horizontal to it's right, keeping the 4m, and other lines connected. As the right hand vertical shrinks to zero, the length of the far left vertical directly increases, so perimeter is unchanged.

b) Now, move the 4m right until it lines up with the 3m.As the lower horizontal shrinks to zero, the upper horizontal directly increases, so perimeter is unchanged.

c) We now have a rectangle of height (4+3) and width 5...

So, the perimeter is 2x (height+width)
=2x(4+3+5)= 24

[ehrenwerterpelikan]

I love these kind of puzzles! Thanks for walking me through!

[Supertomscustoms]

As an architect these problems always drive me nuts. For all the brains mathematicians have, they’ve never figured out how to draw to scale!

[selahattinkara-oh]

👏👏 You explained it perfectly. Congratulations.🙏

[WForrestFrantz]

A fast way to solve it is to realize that if you maintain the 4 M wall and lower the roof of the left building then the pony wall on the 3M tall building gets longer in the exact amount that the tall skinny building gets shorter. Then you are left with two buildings separated by a courtyard. One is 4 M tall and the other is 3 m tall separated by a courtyard with a top and bottom surface. So, 4 + 4 + 3 + 3 + 5 + 5