Please clarify this qestion.
Different shape and size.
Black holes are round due to the intense gravitational forces pulling matter towards the center. This gravity acts equally in all directions, resulting in a spherical shape. Any irregularities in shape would be quickly smoothed out by the immense gravitational forces at play.
Nobody's head is perfectly round. It is a free-form shape. Everybody's is a different shape.
They are not so the question is irrelevant. Look at Eros (see link), for example.
Irregular round shape
Man holes. in most cases , are round because it is the easiest shape to put back into place. Very little alignment is necessary to get them set properly.
it is similar, easy as that. congruent is same shape same size ans similar is same shape different size similar=two figures that have the same shape, but not necessarily the same size
White blood ccelss are round in shape with a slight dip i the middle, they are conected to another round shape with a bumpy surface.There are 7 different types of white blood cells and they each have their own color and shape
A bite with two puncture holes typically looks like two small, round marks close together on the skin, resembling the shape of a fang.
They are said to be similar if they have the same angles but different lengths
Half Round Files are used to smoothen rough edges after cutting or sawing woods, metals, plastics, etc. They are also used for shaping and curving materials into desired form or shape.
find the volume of the shape first and then take away the volume of the holes