No they are not.
Yeah.
The angles for congruent shapes and the angles in similar shapes are all the same. All the sides are also proportional in both. Basically, all congruent shapes are similar but not all similar shapes are congruent.
All congruent shapes have to be are the same size and shape. If you cut lots of cookies with the same cookie cutter then they all would be congruent.
no
Five shapes in all but four of them are the same.
square
Regular polygons.
Yes, congruent shapes have the same perimeter. Congruent shapes are identical in shape and size, meaning all corresponding sides are equal in length. Therefore, when you sum the lengths of all sides for both shapes, the perimeters will also be equal.
they are all the same age ok??
If all the sides and all the angles are the same and in the same order, the shapes are congruent.
Two: a pentagonal base and 5 triangular faces. The triangles need not all be the same and if you count them as different shapes, there will be six shapes in all.
No, they come in all shapes and sizes