i need to know for school
2007-05-25 05:52:25 · 11 answers · asked by Dustin S 2 in Science & Mathematics ➔ Earth Sciences & Geology
Yes.
It will hold its shap under extreme pressure hence bridges and trusses are typically made from triangles. To explain better the 'angles' are what is mobile in a shape. In other shapes ( specifically polygons) all of the angles can change. There is nothing to stop them. However in the triangle, the angles can not change once the triangle is built.. The angles are fixed. This is because a triangle has three sides and three angles, and each angle is fixed by the side opposite to it.
Also when you break down other regular shape (square, circle) they are made up of...triangles.
Obviously there are variables such as material-if you make a triangle out of paper and a circle or steel then um the circle is going to hold more.
Another good example is roller coasters. Look close and you'll see they are made up of triangles : ) Which is good since most of us don't want the damn thing to collapse.
The sphere is not the strongest shape. Ask an engineer.
2007-05-25 05:57:05 · answer #1 · answered by chickey_soup 6 · 1⤊ 0⤋
Triangles form the strongest structure because all three sides bear the load. Compression pushes down equally on two sides of the triangle, causing the base to be pulled equally in two directions, which creates tension. In a square, two sides of the structure bear the load.
Triangles are used to make a very strong form called a truss. A truss is a type of frame that is designed to be stiff. Before steel, trusses were made of wood or iron. Now they are almost always made of steel, though some concrete trusses exist, and some smaller examples use timber.
Circles are also among the strongest shapes in nature. External and internal stress distributes itself evenly throughout a circular structure. Plant stems and tree trunks are examples of the strength of the circular shape.
A bicycle is also an example of a structure that uses simple shapes for strength. The frame of a bicycle is made up of triangles, the frame is tube shaped and the wheels are circles reinforced with triangles. This makes the bicycle a very strong machine.
2007-05-25 06:02:28 · answer #2 · answered by Hzl 4 · 1⤊ 0⤋
The strongest structure is an ovular shape, because there are no edges to create pressure points.
Tresseling is just to make a rectangular shape more structurally sound, it's not because triangles are the strongest structure. You work with the space you have.
2007-05-25 06:00:53 · answer #3 · answered by Mav. 3 · 0⤊ 0⤋
An equilateral triangle is the most efficient mass distribution/strength. Look at the Eiffel Tower, built of puddle iron before steel appeared. Eiffel kept its weight down by dividing its structure into fractal triangles forming arches.
2007-05-25 06:00:48 · answer #4 · answered by Uncle Al 5 · 1⤊ 0⤋
Strongest for what?
A triangle is two dimensional and has no strength.
A tetrahedron, will be strong at the top, but weak at the center of the sides. (A tetrahydron is a solid with 4 triangles for sides).
A Sphere, will have the same strength all around.
A chair with only 3 legs, will always have all 3 legs touching the floor, no wobble, even on an uneven floor.
A chair with 4 legs, will wobble on an uneven floor.
2007-05-25 06:06:03 · answer #5 · answered by Feeling Mutual 7 · 1⤊ 1⤋
Actually, Feeling is right and nearly everyone else is misinformed. A sphere is the strongest because it repels equal pressure. It is absolutely the strongest. Our skull is an excellent example of the strength of a sphere. I can also prove the strength of a sphere using an egg. Take out an egg and try to crush it in your bare hands. You can't because the sphere of an egg repels pressure on all sides. And good luck in school, Destin.
2007-05-25 06:23:12 · answer #6 · answered by Raptor 4 · 0⤊ 1⤋
Triangle is a rigid shape but not strongest. Strongest one is the circle.
2007-05-26 00:40:03 · answer #7 · answered by Pirate of the Bassein Creek 4 · 0⤊ 0⤋
Yes it is, most bridges are made of triangles. All of the weight is supported by the base of a triangle, not the sides like a square or rectangle.
2007-05-25 06:03:06 · answer #8 · answered by ? 5 · 1⤊ 0⤋
No, but it is the most rigid. Thats why its used in contruction; bridges etc. The strongest shape is a circle because stresses are (or can be) perfectly distributed around it. Aircraft fuselages are circular for that reason.
2007-05-25 09:27:27 · answer #9 · answered by black sheep 2 · 0⤊ 0⤋
No a sphere is.
2007-05-25 06:17:41 · answer #10 · answered by Gene 7 · 0⤊ 0⤋