How Egyptians Made Right Angles #shorts

The Egyptians didn't know the Pythagorean Theorem, but they figured out a way to make perfect 3-4-5 right triangles using segments of rope. It's so common sense, unsophisticated, and elegant that it's an example of a proof without words AND mathematical beauty. #shorts

[Morningstar_]

so they used the pythagorean theorem without knowing it

[HercadosP]

1+1=2 is still addition even if you phrase it as "the accumulation of two identical objects results in twice the objects"

[Abunai_Gaming]

This honestly is really impressive. The only issue would come from any elasticity in the rope causing inaccuracies in the amount of stretch each segment does. However, in that day and age, the margins for error are MUCH higher than they need to be today, so it honestly was a fantastic method, and from what I read in the comments, equally usable today.

[mrcombustiblelemon]

"without any math or measurement"

Except, you know, the part where they had to MEASURE 5/12ths of the rope.

Also, that's a dumb system because "the other 2 sides" can be pulled taut in almost any direction, and will most likely make a 5 - 3.5 - 3.5 isosceles triangle instead of a 3 - 4 - 5 right triangle.

[Brontok]

I am studying construction engineer and the teachers explained it in the first day, it is very important in the construction field to make right angles or something

[lunchboxtoothpick]

I'm pretty sure this is how Pythagoras learned this from the Egyptian, based on how they used to divide land for farming on nile

[magnits]

While they technically didn’t know what theorem it was, in a way they still did know the Pythagorean Theorem, because they understood the relationships between lengths in a triangle and that triangle being a right triangle, or a triangle with one perpendicular side.

[smrahmed]

Saying they were able to make right angles without knowing Pythagorean theorem is like saying gravity did not exist until Newton said so.

[DrewishAF]

Except that literally is the Pythagorean Theorem, it just doesn't involved explicitly writing the numbers down

[deltaloraine]

I think they still knew the idea of math back in the day. Just wasn’t official or standardized.

[AgentDynamic]

I learned this 3/4/5-Method as a Landscaper to figure out the right angels fast and easy, for laying paving stones etc..
The best tricks are very old and still working today.^^

[Pixelcraftian]

_”You drew that right angle without knowing the pythagorean theorem?”_
The 4 year old just doing their math homework:

[oleksandr]

This is still useful! I was working on construction site, and this was the easiest way to draw right angle on a big scale.

[lunakitty]

THANK YOU! Aliens didn't build the pyramids, we freakin did!

[TheZiiFamily]

“Thats how to Egyptians did it ok bye”

That made me internally laugh

[notthatserious]

When you use a different method rather than the one taught in class

[SangLe-ysip]

This guy: “Egyptians didn’t know Pythagorean”

Egyptians: built massive pyramids with perfect mathematics, aligned to constellations, materials taken from hundreds of miles away.

[shoking]

Ancient pharaohs: *make straight lines with rope*
Archeologists today: impossible

[jack_of_all___]

So you’re telling me the Pythagorean triplets were Pythagorean triplets before Pythagoras invented the theorem?

[YtOfficialhoonanigans]

This gives the same energy as saying Egyptians don’t know what a circle was