We spent a lot of time at school studying properties of triangles and quadrilaterals. There are many quadrilaterals Yet there are only regular and irregular or concave/convex pentagons, hexagons etc. Why are triangles and quadrilaterals so important?
2006-10-12 10:23:22 · 7 answers · asked by Stanleymonkey 2 in Science & Mathematics ➔ Mathematics
Pentagons are more dangerous to work with. Because of that they are limited to the army, navy, etc.
2006-10-12 10:25:27 · answer #1 · answered by Dr. J. 6 · 0⤊ 1⤋
For one thing, they're easier to understand. There are 4 types of triangles, 7 types of quadrilaterals, but you could draw an infinite number of unique, irregular pentagons.
2006-10-12 17:45:00 · answer #2 · answered by davidosterberg1 6 · 0⤊ 0⤋
Cos when you fold the edges of any quadrilaterals to meet at a point, they do.
Reason: Interior angles of all quadrilaterals add up to 360 degrees. (Same as the angle at a point.)
2006-10-12 19:05:17 · answer #3 · answered by Kemmy 6 · 0⤊ 0⤋
Quadrilaterals, and their three-dimensional relations cuboids, are more useful to us for all sorts of things. Think of bricks for example - they are cuboids because that is the most economical way to build things.
2006-10-16 07:24:03 · answer #4 · answered by msm1089 2 · 0⤊ 0⤋
It's easier to make theorems on triangles and quadrilaterals than on pentagrams. :>)
2006-10-12 17:33:07 · answer #5 · answered by Gaetano G 2 · 0⤊ 0⤋
quadletraterals are and triangles are the most used shapes in life that is why. How many 5 sided buldings have you see lately?
2006-10-12 17:31:11 · answer #6 · answered by CreamOreo 2 · 0⤊ 0⤋
its more common that a pentagon in everyday life
2006-10-13 10:45:47 · answer #7 · answered by jezza_withers 2 · 0⤊ 0⤋