assignment 4
Question bank class 7
Question 1. Fill in the blanks using < or >. (a) -3 …… -4 (b) 6 ……. -20 (c) -8 …… -2 (d) 5 …… -7 Solution: (a) -3 > -4 (b) 6 > -20 (c) -8 < -2 (d) 5 > -7 Question 2. Solve the following: (i) (-8) × (-5) + (-6) (ii) [(-6) × (-3)] + (-4) (iii) (-10) × [(-13) + (-10)] (iv) (-5) × [(-6) + 5] Solution: (i) (-8) × (-5) + (-6) = (-) × (-) × [8 × 5] + (-6) = 40 – 6 = 34 Congruence of Triangles Question 1. In the given figure, name (a) the side opposite to vertex A (b) the vertex opposite A to side AB (c) the angle opposite to side AC (d) the angle made by the sides CB and CA. Solution: (a) The side opposite to vertex A is BC. (b) The vertex opposite to side AB is C. (c) The angle opposite to side AB is ∠ACB. (d) The angle made by the sides CB and CA is ∠ACB. Question 2. Examine whether the given triangles are congruent or not. Solution: Here, AB = DE = 3 cm BC = DF = 3.5 cm AC = EF = 4.5 cm ΔABC = ΔEDF (By SSS rule) question 3: In the given congruent triangles unde...
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