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Rules of congruence for triangles Class 7 Maths Five main rules of congruency for triangles are as follows: Side-Side-Side (or SSS): SSS rule states that two triangles are congruent if all three sides of one triangle are comparable to the corresponding three sides of the second triangle. Side-Angle-Side (or SAS) - rule states that two triangles are congruent if any two sides and angles included between the sides of one triangle are equivalent to the corresponding two sides and angles contained between the sides of the second triangle. Angle-Side-Angle (or ASA) - rule states that two triangles are congruent if any two angles and sides included between the angles of one triangle are comparable to the corresponding two angles and sides included between the angles of the second triangle. Angle-Angle-Side (or AAS) : Congruent triangles have two equal angles and a non-included side, according to this rule. AAS is analogous to ASA in that two angles and one side from two separate triangles

Integers - Definition and Examples - Class 7 Maths Definition of an integer: The word "integer" signifies "total" or "whole." Integers are comparable to whole numbers, with the exception that they can contain negative values. An integer is a number without a decimal or fractional element that comes from the set of negative and positive numbers that includes zero. Examples of integers -2, 10, 5, 800, and 1470 are examples of integers. Z represents a set of integers, which consists of: There are three types of integers: Zero (0) : There is no positive (or negative) integer for zero. As a result, zero is a neutral number, meaning it has no sign. Natural Numbers (Positive Integers) : Positive integers are natural numbers (also referred to as counting numbers). The denotation for these integers is Z+. The direction on the number line where positive integers lie is on the right side of 0. Negative Integers (Natural Numbers' Additive Inverse) : Negative inte