A regular octahedron - two square based pyramids stuck together along their square bases.
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A regular octahedron.
A three-sided shape is called a triangle. There are three types of triangles: equilateral triangles, iscosceles triangles, and scalene triangles. Equilateral triangles have all equal sides and angles; iscosceles triangles have two congruent legs and a base, and scalene triangles do not have any equal sides or angles.
no. Equilateral triangles have all equal sides. Isoceles triangles only have 2 congruent sides. Isosceles triangles have 2 equal sides.
Triangles are equilateral triangles only when all of their 3 sides are equal in lengths.
Equilateral triangles have 3 equal sides whereas isosceles triangles have only 2 equal sides