The triangle is a rigid shape, more so than a square, for example.
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Aren't triangles structurally strong? So they are used in bridges and architechture.
Triangles are the strongest type of shape. It is very sturdy, but takes up little space. It is the best for building bridges.
Pyramids have triangular faces, which might count. Bridges utilize triangles extensively in their design due to the structural support that triangles gives. Towers also utilize triangles for the same reason as bridges: they form a strong structure which resists bending and sagging.
Hyperbolic cosines, parabolas, semicircles, triangles are some shapes.
so the bridge cant fall down when the cars are on it. And the triagles can keep i