Exercise 12.1 1. Get the algebraic expressions in the following cases using variables, constants and arithmetic operations. (i) Subtraction of z from y. Solution: – = Y – z (ii) One-half of the sum of numbers x…
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Here's What Happening in The
World of Learning
Exercise 12.1 1. Get the algebraic expressions in the following cases using variables, constants and arithmetic operations. (i) Subtraction of z from y. Solution: – = Y – z (ii) One-half of the sum of numbers x…
Exercise 13.1 1. Find the value of: (i) 26 Solution: – The above value can be written as, = 2 × 2 × 2 × 2 × 2 × 2 = 64 (ii) 93 Solution: – The…
Exercise 14.1 1. Copy the figures with punched holes and find the axes of symmetry for the following: (a) Solution: – A figure has a line of symmetry, if there is a line about which the figure…
Exercise 15.1 1. Identify the nets which can be used to make cubes (cut out copies of the nets and try it): (i) Solution: – The given net cannot be folded as cube. Because, it can be…
Exercise 7.1 1. Complete the following statements: (a) Two-line segments are congruent if ___________. Solution: – Two line segments are congruent if they have the same length. (b) Among two congruent angles, one has a measure of…