Rectangular is an adjective, not a noun so there is no such thing as a rectangular. You an have a rectangular lamina, a rectangular pyramid, a rectangular prism, a rectangular antiprism and they all have different solid shapes.
rectangular
They are in a rectangular shape because it holds more room than any other shape.
There are many such solids: A heptagonal pyramid A cuboid (or rectangular prism) A hexagonal dipyramid A pentagonal pyramid with a 2-vertex shape on the other side etc.
a rectangular prisim
It is roughly rectangular in shape
Many solids have no rectangular faces, including such forms as the hexagonal pyramid and the regular octahedron.
a shape that is rectangular so deal with it
Yes, solids have a definite shape
rectangular
the shape of the base of a rectangular pyramid is a rectangle.
Rectangular
No. Solids are resistant to changes in both shape and volume.
They are in a rectangular shape because it holds more room than any other shape.
Solids change their shapes in many ways. Solids will melt if they are in hot temperatures, and this changes their shape.
There are many such solids: A heptagonal pyramid A cuboid (or rectangular prism) A hexagonal dipyramid A pentagonal pyramid with a 2-vertex shape on the other side etc.
a rectangular prisim
Cube, rectangular prism