Why is our roof triangular?

Question

Okay this question sounds pretty stupid but it's for my assignment in geometry. It's about putting triangles in application in real life so I thought the roof might be a good one.

If you can give a better example please do so and also put why it should be triangle ^^

Answer 1

the roof is in the form of a triangle because
1) it is sloping so that rain or snow will fall on both side of the house
2) the triangle is the basic geometric form that is most rigid as compared to a rectangle or a trapezoid
3) the apex of the triangle is the collector of the heat on the upper part of the roof.
4) the lower part of the roof is the gutter or the collector of the rain water
5) there are other function of the roof that is in the form of a triangle just like the wind velocity, falling of the leaves, heating of the sun, cleaning of dust, protection, . etc . . . . to some extent . . . the mystical shape of a pyramid.

Answer 2

It has been proven that anything in triangular form is the most stable so the roofs are triangular to give the best protection against strong winds. The same is true with bridges and towers, cranes, etc. These are real life examples of triangle applications. Try standing with your legs straight and standing with your legs apart. When do you feel more stable? Or try making a tower out of pasta and glue, one with triangular forms and one with rectangular forms and see which one would go higher without toppling.

Answer 3

Many roofs in northern climes are triangular so snow will not accumulate to the point of collapse. Otherwise, a triangular roof will dissipate heat better than a flat roof as well.

Answer 4

A triangle the only shape that both has a non-zero interior area and is geometrically stable. If you make a 4-sided structure, or anything else with more than 3 sides, then you have to add extra cross-beams to keep it from collapsing.

Answer 5

So that rain wouldn't accumulate on the roof.

Answer 6

so tat...rain water slops down ....