Understanding Shapes - ICSE Class 8 Maths Chapter 16 скачать в хорошем качестве

Understanding Shapes - ICSE Class 8 Maths Chapter 16

In geometry, any line you draw on paper is referred to as a curve, and these can be classified as open or closed. Full Content Site: https://plz.in/8maths16 A polygon is a specific type of simple closed curve that is made entirely of straight line segments. These segments are known as the sides of the polygon, and the points where the sides meet are called vertices. For a shape to be considered a polygon, it must be fully closed, and its lines must only meet at their endpoints without crossing over each other. Polygons are named based on the number of sides they have, such as a triangle with three sides, a quadrilateral with four, or a pentagon with five. They are also categorised by their angles: a convex polygon has all its interior angles measuring less than 180 degrees, while a concave polygon has at least one interior angle greater than 180 degrees. You can also draw diagonals, which are line segments that connect two corners that are not right next to each other. These diagonals are useful for breaking down complex shapes into simpler triangles. The chapter explains important rules about angles that apply to every polygon. For example, the sum of all exterior angles is always 360 degrees, no matter how many sides the shape has. In a regular polygon, all sides and all angles are equal, making it easy to calculate individual measurements using specific formulas. Another key rule to remember is that at any vertex, the interior angle and the exterior angle together form a straight line, meaning they always add up to 180 degrees. #dohrao #dohraoicseclassh8 #icseclass8 #icse #icseclass8maths #dohraoicseclass8maths