Interior angles of the poygons







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1.INTRODUCTION   In this class you'll also explore how to measure angles using a protractor and how they relate to angle measurements.Overall, this chapter is an excellent introduction to the fundamental concepts of geometry, and it will help you to better understand the properties of angles and lines.  2.OBJECTIVES * To learn about the instruments in the geometrical box. *To understand the angle measures of two setsquares.  *To understand the method of using setsquares in drawing angles. *To find out the measures of angles in a picture using addition and subtraction.  3.SUBJECT MAPPING https://youtu.be/cv0Ak7isW6E 4.ASSIGNMENT  https://surveyheart.com/form/6482f7ec2e031053c993dd48 5.REFERENCES https://www.youtube.com/live/JfM3hQp-lZc?feature=share https://www.youtube.com/live/yQ_KGSMuxAg?feature=share Kerala Syllabus 6th Standard Maths Solutions Chapter 8 Joining Angles 2 How much is ∠CAB? What if we draw another angle on top of this, using a corner of the...
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Note 2( Different method to find out the interior angles in a polygon)

  Sum of Interior Angles in a Polygon The interior angles of a polygon are those angles that lie inside the polygon. Observe the interior angles A, B, and C in the following triangle. The interior angles in a regular polygon are always equal to each other. Therefore, to find the sum of the interior angles of a polygon, we use the formula: Sum of interior angles = (n − 2) × 180° where 'n' = the number of sides of a polygon.   Sum of Interior Angles of a polygon Another way to calculate the sum of the interior angles is by checking the number of triangles formed inside the polygon with the help of the diagonals. Since the interior angles of a triangle sum up to 180°, the sum of the interior angles of any polygon can be calculated by multiplying 180° with the number of triangles formed inside the polygon. For example, a quadrilateral can be divided into two triangles using the diagonals, therefore, the sum of the interior angles of a quadrilateral is 2 × 180° = 360°. Similarly, a...
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