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Importance of Lines and Angles 

What is an Angle | Angles for Kids | DK Find Out

Lines and angles are the primary concepts of geometry. Basically, when we start learning about geometrical shapes, lines and angles are the fundamental shapes which define other geometrical shapes, in two-dimension. For example, a triangle is made up of three lines and three angles. In the same way, a square is made up of four lines and angles. Similarly, the different types of pentagons can be formed.

Now when we learn about lines and angles in geometry, we also go through their classifications. First, let us talk about the lines. A line is a figure made up of infinite points, extending infinitely in both directions. They have negligible depth or width. Lines are basically categorized into a line segment and a ray. A line segment is a part of a line that has two endpoints whereas a ray has one endpoint and its other point extends indefinitely.

Lines are further classified into parallel lines, perpendicular lines, transversal lines. Two lines are parallel if they don’t meet at any point in a plane. When two lines intersect each other at 90 degrees, they are called perpendicular lines. A transversal is a line segment two lines at two distinct points.

Lines and angles are included in nearly every phase of our daily lives. It is essential that students be confident in estimating angles and drawing angles to be victorious in their maths exams. But having a firm knowledge of lines and angles can also boost students’ understanding of the world. 

An angle is made up of two rays, when they meet at their endpoints or when we join two rays end-to-end, an angle is formed. Now, angles also have different types. They are acute angle, obtuse angle, right angle and straight angle. When two rays form an angle less than 90 degrees, it is an acute angle. Similarly, more than 90 degrees is an obtuse angle, exactly equal to 90 degrees is a right angle. A straight angle is equal to 180 degrees.

In the construction business, angles make the difference of whether a building is safe or not. Engineers and contractors need to measure angles very specifically to create a building which stands upright and enables rainwater to run off the rooftop. Moreover, without guaranteeing all structures are constructed with straight lines, construction labours cannot ensure that windows and doors will fit. If these angles and lines are measured incorrectly, or they are not modelled accurately, the building could fall, leave draughty passages, or allow the entrance of water. Construction workers apply the knowledge they studied in school about lines and angles to obtain these important decisions on which our protection depends.

Lines and angles are remarkably important in many fields of real life. A detailed understanding of this topic will also encourage dancers, engineers, architects and many more job roles, so it is necessary to assure children are well provided by using quality, simple to follow worksheets to develop their confidence at angles and lines.