what ever shape the solid is x_x
Stand with your back against strong sunlight, and your shadow on the ground before you will have a definite shape.
No.
Definite shape and volume is a state that defines solid.
Solids have a definite shape because the atoms which make them up are locked firmly in place, and only through external forces (ie, if you cut a part of) or changing the state (melting it) will it become malleable.
A 2 dimensional shape such as a circle is NOT a solid shape, while a sphere is.
The solid shape for a book is a cube
well it depends what shape is the solid. it could be a sqare solid or circle solid
it is the property of solid- a solid has definite shape & volume.
it is a plane shape because you said its a square
It has a fixed shape and volume
a solid keeps it shape unless it is broken
the difference between a two dimensional shape and and a solid is that a two dimensional shape is plane and a solid you can see the whole shape a the inside.