As many or as few as you like.
The measurement of the angle in a two-dimensional shape is the amount of rotation between two intersecting lines, typically measured in degrees.
The inside of a two dimensional shape is called the area.
A rhombus is a two dimensional (plane) shape that is bounded by four congruent lines. If these lines meet at right angles, then the shape is a square which is a special type of rhombus.
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.
It is a plane shape, ie it is 2-dimensional or flat. It is a closed shape defined by four straight lines that meet at four points, two lines at each point.
Lines are one-dimensional objects but they can be in 2-dimensional - or even 20-dimensional) space.
An octagon is a two-dimensional shape.
A two dimensional shape would have 17 sides. For a three dimensional shape - assuming that sides are faces - the answer depends on the shape itself.
A parallelogram is a plane, or two-dimensional shape that is bounded by four straight lines which form its sides. Each pair of opposite sides consists of parallel and congruent (same length) lines.
Yes, a two-dimensional figure is typically defined as a shape that is enclosed by lines, which can include straight lines, curves, or a combination of both. Examples of two-dimensional figures include squares, circles, triangles, and rectangles. These shapes occupy a flat plane and have both length and width but no depth.
Flat shapes such as polygons are two-dimensional.
A semi-circle is a two dimensional shape.