Flat shapes are one of the basic concepts in geometry that we often encounter in everyday life.

  11 September 2024 05:41

Brilio.net - Planar shapes are one of the basic concepts in geometry that we often encounter in everyday life. Understanding various types of plane shapes is very important, both for educational purposes and practical applications. In this article, we will discuss the various types of plane shapes that you need to know, complete with characteristics and examples.

What is a plane figure?

Before we discuss further, let's first define what a plane figure is. A plane figure is a geometric shape that has two dimensions, namely length and width. A plane figure does not have volume, so it can only be measured in units of area. Some examples of commonly known plane figures are triangles, squares, and circles.

1. Triangle

Triangle is a type of flat shape that has three sides and three angles. Triangles can be divided into several types based on the length of their sides, namely equilateral triangles, isosceles triangles, and arbitrary triangles. In addition, triangles can also be classified based on their angles, such as right triangles, acute triangles, and obtuse triangles. Understanding these different types of triangles is essential in a variety of applications, from architecture to graphic design.

2. Square

A square is a flat shape that has four sides of equal length and four angles that each measure 90 degrees. The characteristic of this flat shape is its perfect symmetry. Squares are often used in various fields, such as interior design and city planning. The area of this flat shape can be calculated using the side x side formula, making it very easy to apply in everyday life.

3. Rectangle

A rectangle is a plane figure that has two pairs of sides of equal length. Unlike a square, a rectangle does not have to have sides of equal length. This plane figure is often used in various contexts, such as in making tables, screens, and more. The area of a rectangle can be calculated using the formula length x width.

4. Circle

A circle is a plane figure consisting of all points equidistant from a center point. Circles have a variety of applications, from logo design to architecture. In mathematics, we often use formulas to calculate the area and circumference of a circle, namely area = x r and circumference = 2 x x r, where r is the radius of the circle. Understanding circles as a plane figure is very important in various fields of science.

5. Trapezoid

A trapezoid is a plane figure that has a pair of parallel sides. There are several types of trapezoids, such as isosceles trapezoids and arbitrary trapezoids. This plane figure is often used in architectural design and also in making various everyday objects. The area of a trapezoid can be calculated using the formula (a + b) x height / 2, where a and b are the lengths of the parallel sides.

6. Parallelogram

A parallelogram is a plane figure that has two pairs of parallel sides of equal length. The characteristic of a parallelogram is that the opposite angles are the same size. This plane figure is often used in various applications, including graphic design and architecture. The area of a parallelogram can be calculated using the formula base x height.

7. Rhombus

A rhombus is a plane figure that has four sides of equal length and two pairs of equal angles. The characteristic of a rhombus is that its diagonals intersect each other at right angles. This plane figure is often used in art and design. The area of a rhombus can be calculated using the formula (diagonal 1 x diagonal 2) / 2.

Understanding various types of plane shapes is very important in everyday life. From triangles to rhombuses, each plane shape has its own characteristics and different applications. By knowing the types of plane shapes, you can better understand the concept of geometry and apply it in various fields. Hopefully this article is useful and increases your insight into plane shapes!

(brl/red)

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