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NCERT Solutions Class 7 Maths Chapter 12 Algebraic Expressions Exercise 12.1

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Algebraic Expressions Exercise 12.1 1). Get the algebraic expressions in the following cases using variables, constants and arithmetic operations. (i) Subtraction of z from y. (ii) One-half of the sum of numbers x and y. (iii) The number z multiplied by itself. (iv) One-fourth of the product of numbers p and q. (v) Numbers x and […]

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NCERT Solutions Class 7 Maths Chapter 9 Rational Numbers Exercise 9.2

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Rational Numbers Exercise 9.2 1). Find the sum of: i). 5/4 + (-11/4)                                          ii). 5/3 + 3/5 iii). -9/10 + 22/15                                       iv). -3/11 + 5/9 v). -8/19 + (-2)/57                                        vi). -2/3 + 0 vii). -2 1/3 + 4 3/5 Answer:  i). 5/4 + (-11/4)                                          ii). 5/3 + 3/5 iii). -9/10 +

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NCERT Solutions Class 7 Maths Chapter 6 Congruence of Triangles Exercise 7.1

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Congruence of Triangles Exercise 7.1 1). Complete the following statements: (a) Two line segments are congruent if they have the same length. (b) Among two congruent angles, one has a measure of 70°; the measure of the other angle is 70°. (c) When we write ÐA = ÐB, we actually mean mÐA = mÐB.  

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NCERT Solutions Class 7 Maths Chapter 6 The Triangle and Its Properties Exercise 6.2

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The Triangle and Its Properties Exercise 6.2   1). Find the value of the unknown exterior angle x in the following diagrams: i). the sum of interior opposite angles = exterior angle  500 + 700 = x 1200 = x  x = 1200 ii).      the sum of interior opposite angles = exterior angle

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