8
4
The regular tetrahedron - one of the 5 platonic solids.
True.
A regular octagon has 8 sides.
All regular polygons A polygon is symmetrical if its sides that cross the line of symmetry are halved by the line of symmetry and if the sides that do not cross the line of symmetry have the same positions in space, the same lengths, and the same angles with their neighboring sides as do the sides on the other side of the line of symmetry. The only symmetrical triangles are isosceles triangles (equilateral triangles are isosceles). The only symmetrical quadrilaterals are squares, rectangles, rhombi (the line of symmetry connects either pair of opposite corners), isosceles trapezoids, and kites.
No. It is the opposite sides of a regular octagon that are parallel and congruent.
No, a regular octagon has 8 congruent sides
rectangle
8 if it's a regular octagon
Eight triangles of equal size form a regular octagon.
Yes, it can, even a regular octagon.
four
if it has all congruent sides, then it is regular
Regular polygons have congruent angles such as squares and equilateral triangles.
It is a regular octagon.
Yes:As the shape is regular all sides are equal in length (and congruent).An octagon has 8 sides. As this is an even number of sides, the opposite sides are parallel.
A regular octagon