Geometric Shapes

Geometric Shapes

    In Mathematics, Geometric shapes are the figures which demonstrate the shape of the objects we see in our everyday life. In geometry, shapes are the forms of objects which have boundary lines, angles and surfaces. There are different types of 2d shapes and 3d shapes. Shapes are also classified with respect to their regularity or uniformity. A regular shape is usually symmetrical such as square, circle, etc. Irregular shapes are asymmetrical. They are also called freeform shapes or organic shapes. For example, the shape of a tree is irregular or organic.

    In plane geometry, the two-dimensional shapes are flat shapes and closed figures such as circle, square, rectangle, rhombus, etc.  In solid geometry, the three-dimensional shapes are cube, cuboid, cone, sphere and cylinder. We can observe all these shapes in our daily existence also. For example books (cuboid shape), glasses (cylindrical shape), traffic cones (conical shape) and so on. In this article, you will learn different geometric shapes and their definition along with the examples.

Definition

    Geometrical shapes are the figures which represent the forms of different objects. Some figures are two-dimensional, whereas some are three-dimensional shapes. The two-dimensional figures lie on only x-axis and y-axis, but 3d shapes lie in x, y and z axes. The z-axis shows the height of the object. As we have already discussed in the introduction, there are different shapes defined in geometry.

    To draw or design any of these figures start with a line or a line segment or a curve. Depending upon the number and arrangement of these lines, we get different types of shapes and figures like a triangle, a figure where three line segments are connected, Pentagon (five-line segments) and so on. But every figure is not a complete figure.

List of Two Dimensional Geometric Shapes:

• Triangle
• Circle
• Square
• Rectangle
• Parallelogram
• Trapezium

Triangle:

Triangle is a polygon, which is made of three sides and consists of three edges and three vertices. Also, the sum of its internal angles equals to 180°.

Circle

Locus of all points at a fixed distance from a reference central point is called a Circle.

Square

Square is a quadrilateral where all the four sides and angles are equal and the angles at all the vertices equal to 90° each.

Rectangle

A quadrilateral which has its two pairs of opposite sides equal in length and interior angles are at the right angles.

Parallelogram

A parallelogram is a quadrilateral with two pairs of parallel sides and opposite angles are equal in measures.

Trapezium

These are made up of line segments and no curves. They are enclosed structure based on different length of sides and different angles.