This object is called an octahedron
An equilateral triangle is a triangle where all of the sides are of equal length. An isosceles triangle is a triangle that has only two sides that are of equal length.
A scalene triangle is a triangle with no equal sides
No, they are not. Isosceles triangles have 2 equal sides and equilateral triangles have 3 equal sides.
A triangle can have equal sides. This is called an equilateral triangle. Other triangles may not have equal sides.
Not all. Only equilateral triangles have. Equilateral triangles have equal sides and 60 degrees on each corner of the triangle. Other triangle need not have equal sides.
a pyramid, in the sense that most people think of has a square base, with 4 triangle 'sides', which would be 5 faces. A regular tetrahedron has 4 equilateral triangles as faces.
All triangles have 3 sides but an isosceles triangle has 2 equal sides and an equilateral triangle has 3 equal sides.
A right triangle can NEVER have two equal sides (in euclidean space). Triangles with two equal sides are known as isosceles triangles.
Triangles with three equal sides are called equilateral triangles.
They are not the same. An equilateral triangle has 3 equal sides, while a scalene triangle has no equal sides.
No, not at all, all isosceles triangles aren't equilateral since an equilateral triangle is a triangle with all of its sides equal, i.e. all sides of an equilateral triangle are equal, but in an isosceles triangle only two of its sides are equal.
A scalene triangle has three unequal sides, an equilateral triangle has three equal sides. An isosceles triangle has two equal sides. Because with a scalene triangle only two sides are equal but with a equilateral triangle that would mean all sides are equal. (scalene = 2 sides & equilateral = all sides equal)