Triangles are strong because of their inherent structural characteristics. The corner angles of a triangle cannot change without an accompanying change in the length of the edge. Therefore, in order to change a triangle’s shape, an edge must collapse.
Know MoreEdges can be made much stronger than connections. Triangles hold large loads without collapsing or having their structure altered. Triangles are the only polygons that have this characteristic. For instance, triangles have three connections, while squares have four. When forces are applied to a square, a square is more prone to lose its shape. Engineers often add a diagonal through the middle of a square, effectively turning it into two triangles and making it stronger. Triangles are the fundamental building blocks of many contemporary structures. Their strong, inflexible structure makes them perfect for contemporary designs. They are used in architecture and construction to create structures that must bear a certain amount of weight but still have material strength limits. For example, bridge and trusses are often constructed around triangles. Disney’s Epcot Center is another recognizable example of a structure in which triangles create stability in a 3-D structure. Of all the two-dimensional polygons, the triangle is considered the strongest because of its inherent structural qualities.
Learn MoreA person draws a hexagon by drawing a closed polygon with six sides and six vertices. A regular hexagon has six equal sides and six equal angles. A person can draw a regular hexagon using a geometric construction.
Full Answer >A 30-60-90 triangle has interior angles equal to 30, 60 and 90 degrees. This is always a right triangle with the 90-degree angle located opposite the longest side of the triangle and the 30 degree angle located opposite the smallest side. The sides of a 30-60-90 triangle are always in a 1:root 3:2 ratio with each other, where 2 represents the longest side of the triangle.
Full Answer >A two-dimensional rectangle has four vertices, and a three-dimensional rectangle has eight. The differences between the two figures are the number of sides and points of intersection.
Full Answer >The three interior angles of a triangle always add up to 180 degrees, which is one of the identifying characteristics of a triangle. Each shape has properties that are unique to that specific figure. Other identifying properties are that the exterior angles of a trangle always add up to 360 degrees and that a triangle always has three sides.
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