You are describing a triangular prism. It has a rectangular base, two rectangular sides and two triangular ends.
cube
no. Equilateral triangles have all equal sides. Isoceles triangles only have 2 congruent sides. Isosceles triangles have 2 equal sides.
The answer depends on the shapes and sizes of the triangles. I can make a big triangle, a quadrilateral, pentagon, hexagon, etc up to 12 sides.
Well, any shape with a triangular face. I assume that you mean a shape that only has (identical) triangles for faces. There are 2: the tetrahedron with 4 triangles, and the icosahedron with 20 triangles. * * * * * What about a triangular dipyramid? Two triangular pyramids stuck together along one face?
You are describing a triangular prism. It has a rectangular base, two rectangular sides and two triangular ends.
There is no 3D shape with 6 faces: 4 rectangles and 2 triangles. See the link for all forms of hexahedra.
the sides of a pyramid are triangles
Triangular prism
It is a shape that has at least 2 sides that are the same. Usually triangles.
2 equilateral triangles
cube
use the formula s-2 (s=sides) there are 2 triangles in a square, which has 4 sides:4-2=2 there are 3 triangles in a pentagon, which has 5 sides:5-2=3 so, there should be 48 triangles in a shape with 50 sides:50-2=48
a rhombus is defined as a quadrilateral that has two pairs of parallel sides and the sides are congruent
no. Equilateral triangles have all equal sides. Isoceles triangles only have 2 congruent sides. Isosceles triangles have 2 equal sides.
The answer depends on the shapes and sizes of the triangles. I can make a big triangle, a quadrilateral, pentagon, hexagon, etc up to 12 sides.
isosceles triangles have 2 congruent sides scalene triangles have no congruent sides equilateral triangles have 3 congruent sides