Congruence If we superpose one figure over other and they fit into each other then they must be congruent shapes. They must have the same shape and size. Symbol of Congruence Congruence of 2-dimensional Shapes In the case of 2D
Read MoreTriangle Triangle is a closed curve made up of three line segments. It has three vertices, sides and angles. Here, in ∆ABC, AB, BC and CA are the three sides. A, B and C are three vertices. ∠A, ∠B and ∠C
Read MorePoint A point is a geometrical element which has no dimensions. Line A line is a straight path which has no endpoints. Line Segment A line segment is a straight path which has two endpoints. Ray A ray is a
Read MoreAlgebraic Expressions It is an expression involving constant, variable and some operations like addition, multiplication etc. Variable Variable is an unknown number which could have a different numerical value. It is called Variable as it can vary. It is represented by different
Read MoreData Any raw information which we collect to know about it and to compare certain things is called Data. This information is in the form of facts and figures and is collected for some specific purpose. Example Number of students in
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