# Ex 3.1, 1 - Chapter 3 Class 8 Understanding Quadrilaterals

Last updated at Aug. 4, 2018 by

Last updated at Aug. 4, 2018 by

Transcript

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

Polygons

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.