Understanding the Properties of Flatness that are Important in Mathematics Education

Illustration (helpingwithmath.com)

YOGYAKARTA - The properties of flat surfaces are the basic material in mathematics lessons. A flat surface is a two-dimensional shape that only has length and width without thickness or height. Almost all objects around us have a flat surface shape as the basis of their structure.

Some flat shapes that we often encounter are squares, rectangles, triangles, and circles. To better understand what flat shapes are and their properties, see the following discussion.

What is Flat-Out?

Reported from Cuemath, a flat surface is a geometric shape that only has two dimensions, namely length and width. This build does not have thickness, height, or depth so it does not have a volume. A simple example of a flat surface is a piece of paper that can only be measured in length and width.

In geometry, a flat shape is defined as a plane that is completely flat. Flat shapes are different from spatial shapes that have three dimensions, i.e., length, width, and height. Examples of spatial shapes include blocks, cubes, cones, and cylinders.

Flat solids can be drawn and easily observed on a flat surface such as paper or a blackboard. Almost all flat solids have sides and angles. The exception is the circle which has no straight sides or angles because it is composed of curved lines.

Flat-out Properties

Some common types of flat shapes are circles, triangles, squares, and rectangles. Let's study the properties of these flat shapes.

Circle

A circle is a two-dimensional flat shape consisting of a closed curve line. Circles do not have angles or corner points like other flat shapes. Examples of objects in the form of a circle in everyday life are coins, wheels, and pizzas.

Properties of circles:

A circle is completely round and consists of a single curved line. The circumference is the length of the circle's boundary. The radius is the distance from the center of the circle to the boundary of the circle. The diameter is the line segment that extends straight across the circle, through its center. It is the longest line that can possibly be drawn inside the circle and is twice the radius in length.

A triangle is a flat shape that has three sides and three corner points. The triangle is the simplest polygon in geometry. The shape of the triangle is often found on traffic signs and building structures.

Triangle properties:

A triangle is a closed figure with 3 sides, 3 vertices, and 3 angles. It is a polygon whose sum of interior angles is 180°.

A square is a flat shape with four sides of equal length. The four corners of the square each measure 90 degrees. Examples of squares in everyday life are chess boards and floor tiles.

Square properties:

Has four sides of equal length. Has four angles measuring 90˚. Has two diagonals of equal length. Has four axes of symmetry of fold and turn. Rectangle

A rectangle is a flat shape with four sides and four right angles. The sides that face each other in a rectangle have the same length and are parallel. Examples of rectangles can be found on tables, whiteboards, and books.

Rectangle properties:

It has four sides. The sides that face each other are of equal length. It has four right angles. It has two axes of symmetry of fold and rotation. It has two diagonals that intersect into two parts of equal length.

So that's the discussion of the properties of flat surfaces, follow other interesting articles on VOI.ID. So as not to miss the latest news, follow and monitor our social media accounts!