1, 3, 6, 10, 15, 21
It has 6 vertices, 9 edges and 5 faces
Triangles for a triangular prism. Not sure about trangular prism, though.
The first 6 composite numbers are 4, 6, 8, 9, 10, and 12.
A trangular based pyramid has 4 faces, 6 edges and 4 vertices
A triangular prism has 5 faces, 9 edges and 6 vertices
Yes it is. In sequence from 1, the first 10 triangular numbers are... 1, 3, 6, 10, 15, 21, 28, 36, 45 & 55.
6 edges No, 9 edges
6 edges No, 9 edges
It has 6 vertices, 9 edges and 5 faces
Triangles for a triangular prism. Not sure about trangular prism, though.
cube, rectangular prism, square pyramid, trangular, trangular prism
The first 6 composite numbers are 4, 6, 8, 9, 10, and 12.
A trangular based pyramid has 4 faces, 6 edges and 4 vertices
A triangular prism has 5 faces, 9 edges and 6 vertices
a trangular sail
The first 6 square numbers are: 1, 4, 9, 16, 25, 36
The first six triangular numbers are 1, 3, 6, 10, 15 and 21.