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How did the egyptians make a right angle triangle out of rope with twelve equally shaped knots?
Wiki User
∙ 10y ago
The Egyptian's used Pythagoras' theorem to do this (although it did not exist then, there is debate as to whether the Egyptian's knew of this mathematical theorem before Pythagoras).
Firstly it is important to think about the twelve equal segments in the rope. The right angle triangle that would have to be created would have to have the dimensions of 3, 4, 5 (as these accumulate to 12).
(Imagine a triangle dimensions 3 by 4 by 5; it helps to sketch one)
So what is important to see from this is the fact that along the the "4" line there is 5 knots (1 in each corner + 3 more centralised); along the "3" line there are 4 knots (1 in each corner + 2 more centralised), and so along the hypotenuse there are 6 knots (1 in each corner + 4 more centralised).
The Egyptians could tell that the angle subtended between line 3 & 4 was equal to 90 degrees as (as we now know it) the triangle follows Pythagoras' theorem.
I hope this cleared things up for those who confused by other sites.
Wiki User
∙ 10y ago
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What are the dimensions of a right triangle with a perimeter of twelve cm?
3 cm, 4 cm and 5 cm because they are a Pythagorean triple
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an exact answer would be twelve times the square root of three
How do you measure a irregular shaped solid like a cube?
A cube is hardly an irregularly shaped object. Measuring it is the defining term of area and volume. A cube is defined as having twelve sides, all lengths uniform, all angles right angles. If the length of any side is 'a' then area = 6*a*a volume = a*a*a
If a triangle has two side lengths of five and twelve what is the value of the third side?
If the triangle is a right triangle then you can figure the third side called the hypotenuse. Square the first side, square the second side then add them together. Take the square root of that total and that will be the third side. 5^2=25 12^2=144 25+144=169 13x13=169 so the hypotenuse is 13.
What is twelve in math?
Twelve is twelve, PERIOD
What is a triangle with 12 sides called?
There is no such thing as a triangle with twelve sides.
Where did the twelve titans lived?
they live in a building shaped like a T on an island
What is a twelve-sided fragment called?
A 12-sided flat-shaped fragment is a dodecagon.
If a triangle has a base of 12 centimeters and an area of 48 centimaters square what is the height of the triangle?
Four because forty eight divided by twelve is four.
What is a twelve sided shaped object?
If it's three dimensional, a 12 sided figure is a dodecahedron.
What is The length of the mid-segment of a triangle with a base of twelve?
The base of the triangle equals (2x) the mid-segment, so.... 12/2 = 2x/2 6= x
Was Egypt part of the twelve tribes of Israel?
A:Even those who believe in the historicity of the stories of Abraham and his descendants, who were the biblical ancestors of the twelve tribes of Israel, acknowledge that Egypt existed long before the time of Abraham. The ancient Egyptians were not even a Semitic people, so there was no close ethnic relationship between the Egyptians and the Israelites.
What are the first twelve rows of pascals triangle?
1--- 1,1--- 1,2,1--- 1,3,3,1--- 1,4,6,4,1--- 1,5,10,10,5,1--- 1,6,15,20,15,6,1--- 1,7,21,35,35,21,7,1--- 1,8,28,56,70,56,28,8,1--- 1,9,36,84,126,126,84,36,9,1--- 1,10,45,120,210,252,210,120,45,10,1--- 1,11,55,165,330,462,462,330,165,55,11,1--- 1,12,66,220,495,792,924,792,495,220,66,12,1--- press improve answer to see it as a triangle
Area of a triangle is twenty four square inches it 's height is twelve inches how long is it's base?
4 in
What are the dimensions of a right triangle with a perimeter of twelve cm?
3 cm, 4 cm and 5 cm because they are a Pythagorean triple
What is the reason for the twelve apostles' landform shape?
the reason why the twelve apostles are shaped the way that they are is because of the erosion of the limestone. also because of this constant weathering, four of the apsotles are gone or nearly gone. hope that answers your question
What is sixty-three thousand two hundred ninety nine divided twelve equal?
The number sixty-three thousand two hundred ninety nine divided by the number twelve is 5274.97. The number 12 is not equally divided into the number 63,299.
