A triangle.
triangle
equilateral triangle
An heptagon has 7 corners and 7 sides whereas an octagon has 8 corners and 8 sides
No shape can have two corners
Hexagon has 6 sides and 6 corners.
That's impossible, because if a shape has sides, then it means it has corners, and vice versa.
Triangle
triangle
There is no such shape. If it has two sides meeting, it also has to have a corner. A triangle has three sides and three corners, and a square has four sides and four corners. There is nothing in between.
equilateral triangle
A triangle
An heptagon has 7 corners and 7 sides whereas an octagon has 8 corners and 8 sides
No shape can have two corners
you seroiusly dont know? its a triangle (3 sides)
This shape has ten sides
A penagon is a shape with five sides and five corners.
Dodecagon...it has 12 sides and 12 corners.