Q:
# How many vertices does a triangle have?

**A triangle has three vertices.** A triangle consists of three lines, and the location where one line endpoint meets another line endpoint is called a vertex. A square consists of four vertices, while an octagon contains eight vertices.

Credit:
Sarah Witherby
CC-BY-SA 2.0

Any polygon has the same number of vertices as it does sides; this is a constant that never changes, no matter how many lines are introduced into a polygonal shape.

A collinear vertice refers to a set of points that lie on the same straight line.

Triangles are classified by the length of their sides and by the interior angles of the corners.

Learn more about Shapes-
Q:
## How many diagonals does a nonagon have?

A: A nonagon, or enneagon, is a polygon with nine sides and nine vertices, and it has 27 distinct diagonals. The formula for determining the number of diagona... Full Answer >Filed Under: -
Q:
## How many vertices does a rectangle have?

A: A two-dimensional rectangle has four vertices, and a three-dimensional rectangle has eight. The differences between the two figures are the number of sides... Full Answer >Filed Under: -
Q:
## Which shape has four vertices and four faces?

A: A tetrahedron is a three-dimensional shape that contains four vertices, four faces and six edges. This Platonic solid is classified as a polyhedron, specif... Full Answer >Filed Under: -
Q:
## How many vertices does a square-based pyramid have?

A: A square-based pyramid has five vertices. The vertices are the corner points formed by the intersection of three edges. For a square-based pyramid, there a... Full Answer >Filed Under: