Having the same size and shape means that you look the same height and size.
Yes, it does. A congruent shape has the same shape and size as another shape. A shape that is similar is the same shape, just a different size, like a proportion.
It is similar.
Two objects having both the same size and shaped could be said to be 'congruent'.
They are said to be congruent
it means having the same size and shape