Explain two-dimensional and three-dimensional figures.
Defines the Perimeter and Area of 2D (two-dimensional) shapes.
Defines the surface area and volume of 3D(three-dimensional) shapes.
3.1 Introduction
Geometry is one of the oldest and most practical branches of mathematics that deals with the shapes and sizes of different shapes and their properties. “GEOMETRY” was derived from a Greek word meaning “EARTH MEASUREMENT.”
Objects that have boundary lines, angles, and surfaces are considered SHAPES. A regular is a symmetrical shape such as a square, circle, etc., whereas Irregular shapes are also called freeform shapes or organic shapes; they are asymmetrical. For example: the shape of a tree is irregular or organic.
3.2 Geometry
3.2.1 One-Dimensional Geometry
Point and line: The location of any object with no length, width, or depth is known as a point in. A dot in the figure shows a point. A point is considered zero-dimensional, while a line is one-dimensional, and its length can be measured.
3.2.2 Two-Dimensional Geometry
A flat plane figure or a shape with two dimensions is called a two-dimensional shape. It can be defined as length and width. These shapes are flat and ...
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