In geometry, a tetrahedron (plural: tetrahedra) is a polyhedron composed of four triangularfaces, three of which meet at each vertex. It has six edges and four vertices. The tetrahedron is the only convex polyhedron that has four faces.

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Bheri Giridhar Kartikeya answered this

a solid that has 4 equilateral triangles is called tetrahedron.

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Bheri Giridhar Kartikeya answered this

equilateral or congruent

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Wamika answered this

all 3d shapes that hat equilateral triangle or in oyher words a triangular pyramid

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Shubhika Agarwal answered this

i do not know

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Aneesh Swamy answered this

a tetrahedron is a 3d shape which consists of four triangularfaces, three of which meet at each vertex. It has six edges and four vertices. The tetrahedron is the only convex polyhedron that has four faces.

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Siftee Ratra answered this

A shape which has triangle as the base

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Kunal Singh answered this

A Triangular pyramid is also called a tetrahedron.

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Subhojit Roy answered this

a tetra hendron is a triangular pyramid. some examples are like the cover of the drink fruti