A geometry problem over a century old has just found its definitive answer. Mathematicians have confirmed that the solution ...

Now, more than 122 years after it was first proposed, Kamata and two other mathematicians have finally proved that a solution ...

When Adrian Bejan, a mechanical engineering professor from Duke University, visited the town of Benevento in southern Italy, ...

An equilateral triangle has rotational symmetry of order ... A triangle is a rigid shape and is used in the construction of bridges. A triangle is a rigid shape. This fact is put to good use ...

A pyramid is named by the shape of its ‘base’. A pyramid with a triangular base is a triangle-based pyramid. A tetrahedron is a triangular pyramid with all equilateral triangle faces.

Properties of symmetry: - Students may notice symmetry in the isosceles and equilateral triangles and ... While initially very similar looking, these triangles behave very differently under dragging. ...

To solve the puzzle, the trio grouped possible dissections of an equilateral triangle based on how the ... by tracing all possible paths in each shape and comparing the edge lengths and angles.