Q: What shape has four faces that are isosceles triangles?

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A pyramid - it has a square base, and four triangles meeting to a point at the top.

A four faced figure is a tetrahedron. If they are all congruent triangles, they are all equilateral triangles and it is a regular tetrahedron - one of the 5 Platonic Solids.

Here is one way: /\ --- /\/\ ----- These are {45Â°, 45Â°, 90Â°} triangles. There are 3 on the bottom row, and 1 on top. Actually, any four identical isosceles triangles would work.

No.

A square-based pyramid net consists of a square base with four isosceles triangle faces extending from each side of the square. The triangles meet at a single point at the top of the pyramid. When the net is folded and assembled, it forms a three-dimensional square-based pyramid shape.

Related questions

Isosceles TetrahedronA solid with four faces is a tetrahedron. Each of the faces is a triangle. If all the triangles are congruent, you have an isosceles tetrahedron.

The tetrahedron. If one of the four triangles is equilateral and all others are isosceles, then one might also call it a (triangular-based) pyramid.

A three-dimensional figure or shape, such as a tetrahedron, has four faces. These faces are equilateral triangles. A tetrahedron also has four vertices and 6 edges.

A triangular pyramid has.

A pyramid.

A tetrahedron; a shape made of four triangles.

A pyramid - it has a square base, and four triangles meeting to a point at the top.

A pyramid has a variable number of triangular faces. The base of a triangle can be practically any regular shape, starting with a triangle. Technically a pyramid can have four or more triangles as faces.

a square pyramid

A four faced figure is a tetrahedron. If they are all congruent triangles, they are all equilateral triangles and it is a regular tetrahedron - one of the 5 Platonic Solids.

Square Pyramid

Here is one way: /\ --- /\/\ ----- These are {45Â°, 45Â°, 90Â°} triangles. There are 3 on the bottom row, and 1 on top. Actually, any four identical isosceles triangles would work.