There is no such thing as an object with two sides.
A PLANE has two sides
There is no such object.
It could be an angle with either two sides or two rays. If it's a closed object then it might be like the letter D. Or like a crescent (quarter moon).
isosceles triangle
There is no such thing as an object with two sides.
A PLANE has two sides
There is no such object.
bilateral
It could be an angle with either two sides or two rays. If it's a closed object then it might be like the letter D. Or like a crescent (quarter moon).
A two-dimension shape with eight sides is an octagon. A three-dimensional object with eight sides is an octahedron.
If two people on opposite sides are pushing on an object with equal force, the object will not move. The forces will cancel each other out, resulting in an equilibrium.
isosceles triangle
I clyinder is like a can. An object with two circular bases and round sides.
If an object is symmetrical, it means that both sides are equal in size. In the word WHISPER, the letter H and the letter W both have symmetrical sides.
I can see two possible answers to this question:There exists no three-dimensional object with only two sides.Picture a two-dimensional circle. Now put it in the third dimension and inflate the center of it a little bit. It would be like a coin, but the edges of both sides converge to a single edge. This may or may not count as a "three-dimensional object with two sides," depending on various possible definitions of the words in that phrase.
Concave means that there is a dip in the object, like it has caved in. Bi-concave means that it is dipped in on two sides of the object. A good example is a red blood cell. It is a bi-concave disk - it has dips on two sides of it.