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  1. Plane shapes can be defined as two-dimensional geometric figures that exist on a flat surface, known as a plane. These shapes have only length and width, with no depth or thickness. They are characterized by their boundaries, which can be made up of straight sides or curved lines.

  2. Feb 5, 2024 · Curves: Various curves like the letter C or S have disconnected endpoints. Semicircle: Half of a circle's circumference, forming a curved open shape. Polyline: A series of connected line segments, where the endpoints of adjacent segments meet but do not form a closed shape.

  3. Aug 16, 2024 · Two-dimensional (2D) shapes are flat figures that have only length and width, but no depth. They exist solely on a plane, meaning they are confined to two dimensions and do not have any thickness. These shapes can be geometrically defined by points, lines, curves, and angles that form closed boundaries.

  4. Jan 5, 2024 · Line. A line is straight, has no thickness, and goes on infinitely on both ends- so it has no ends! A line segment, however, does have two ends. A line with just one end is called a ray. Just like the ray from the sun, it starts on one end going in one direction infinitely. Plane.

  5. Apr 18, 2024 · A plane mirror is a flat, smooth mirror where the reflecting surface is a plane. It differs from other types of mirrors, such as concave and convex mirrors, in that it does not have any curvature. What is the field of view of a plane mirror?

  6. Dec 21, 2020 · In this chapter we’ll explore new ways of drawing curves in the plane. We’ll still work within the framework of functions, as an input will still only correspond to one output.

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  8. Dec 21, 2020 · Unlike a plane, a line in three dimensions does have an obvious direction, namely, the direction of any vector parallel to it. In fact a line can be defined and uniquely identified by providing one point on the line and a vector parallel to the line (in one of two possible directions).