Ex 3.1

Chapter 3 Class 8 Understanding Quadrilaterals
Serial order wise

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Ex 3.1, 1 Given here are some figures. Classify each of them on the basis of the following. (a) Simple Curve : A curve which does not cross itself is a simple curve. Figures (1), (2), (5), (6), and (7) are Simple Curves. Ex 3.1, 1 Given here are some figures. Classify each of them on the basis of the following. (b) Simple Closed Curve : A curve which does not cross itself and is closed is a simple closed curve Figures (1), (2), (5), (6), and (7) are Simple closed Curves. Ex 3.1, 1 Given here are some figures. Classify each of them on the basis of the following. (c) Polygon: A Simple Closed Curve made up of only line segments is a Polygon Figures (1) and (2) are PolygonsFigures (1) and (2) are PolygonsIn a Convex Polygon, no part of their diagonals is in the exterior Figures (2) is a Convex Polygon. Ex 3.1, 1 Given here are some figures. Classify each of them on the basis of the following. (e) Concave polygon In a Concave Polygon, diagonals can be in the exterior Figure (1) is a concave Polygon

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#### Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.