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Chapter 5 Understanding Elementary Shapes

Exercise 5.9

Last Updated on June 19, 2019 By Mrs Shilpi Nagpal Leave a Comment

Class 6 | Mathematics | Chapter 5| Understanding Elementary Shapes | Exercise 5.9 1. Match the following : Give two new examples of each shape. Answer: 2. What shape is (a) Your instrument box? (b) A brick? (c) A match box? (d) A road-roller? (e) A sweet laddu? Answer : (a) Cuboid (b) Cuboid (c) Cuboid (d) Cylinder (e) Sphere … [Read more...] about Exercise 5.9

Exercise 5.8

Last Updated on June 19, 2019 By Mrs Shilpi Nagpal Leave a Comment

Class 6 | Mathematics | Chapter 5| Understanding Elementary Shapes | Exercise 5.8 1. Examine whether the following are polygons. If any one among them is not, say why? Answer: (a) As it is not a closed figure, therefore, it is not a polygon. (b) It is a polygon because it is closed by line segments. (c) It is not a polygon because it is not made by line … [Read more...] about Exercise 5.8

Exercise 5.7

Last Updated on June 19, 2019 By Mrs Shilpi Nagpal Leave a Comment

Class 6 | Mathematics | Chapter 5| Understanding Elementary Shapes | Exercise 5.7 1. Say True or False : (a) Each angle of a rectangle is a right angle. (b) The opposite sides of a rectangle are equal in length. (c) The diagonals of a square are perpendicular to one another. (d) All the sides of a rhombus are of equal length. (e) All the sides of a parallelogram are of … [Read more...] about Exercise 5.7

Exercise 5.6

Last Updated on June 19, 2019 By Mrs Shilpi Nagpal Leave a Comment

Class 6 | Mathematics | Chapter 5| Understanding Elementary Shapes | Exercise 5.6 1. Name the types of following triangles : (a) Triangle with lengths of sides 7 cm, 8 cm and 9 cm. (b) ΔABC with AB = 8.7 cm, AC = 7 cm and BC = 6 cm. (c) ΔPQR such that PQ = QR = PR = 5 cm.(d) ΔDEF with m ∠D = 90° (e) ΔXYZ with m ∠Y = 90° and XY = YZ (f) ΔLMN with m ∠L = 30°, m ∠M = … [Read more...] about Exercise 5.6

Exercise 5.5

Last Updated on June 19, 2019 By Mrs Shilpi Nagpal 1 Comment

Class 6 | Mathematics | Chapter 5| Understanding Elementary Shapes | Exercise 5.5 1. Which of the following are models for perpendicular lines : (a) The adjacent edges of a table top. (b) The lines of a railway track. (c) The line segments forming the letter ‘L’. (d) The letter V. Answer: (a) Perpendicular (b) Not perpendicular (c) Perpendicular (d) Not … [Read more...] about Exercise 5.5

Exercise 5.4

Last Updated on June 19, 2019 By Mrs Shilpi Nagpal Leave a Comment

Class 6 | Mathematics | Chapter 5| Understanding Elementary Shapes | Exercise 5.4 1. What is the measure of (a) a right angle? (b) a straight angle? Answer: (a) 90° (b) 180° 2. Say True or False : (a) The measure of an acute angle < 90°. (b) The measure of an obtuse angle < 90°. (c) The measure of a reflex angle > 180°. (d) The measure of one complete … [Read more...] about Exercise 5.4

Exercise 5.3

Last Updated on June 19, 2019 By Mrs Shilpi Nagpal Leave a Comment

Class 6 | Mathematics | Chapter 5| Understanding Elementary Shapes | Exercise 5.3 1. Match the following : (i) Straight angle (a) Less than one-fourth of a revolution (ii) Right angle    (b) More than half a revolution (iii) Acute angle   (c) Half of a revolution (iv) Obtuse angle (d) One-fourth of a revolution (v) Reflex angle   (e) Between 1 4 and 1 2 of a … [Read more...] about Exercise 5.3

Exercise 5.2

Last Updated on June 19, 2019 By Mrs Shilpi Nagpal Leave a Comment

Class 6 | Mathematics | Chapter 5| Understanding Elementary Shapes | Exercise 5.2 1. What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from (a) 3 to 9 (b) 4 to 7 (c) 7 to 10 (d) 12 to 9 (e) 1 to 10 (f) 6 to 3 Answer: a) When the hour hand goes from 3 to 9 , it will rotate by 2 right angles. b) When … [Read more...] about Exercise 5.2

Exercise 5.1

Last Updated on June 19, 2019 By Mrs Shilpi Nagpal Leave a Comment

Class 6 | Mathematics | Chapter 5| Understanding Elementary Shapes | Exercise 5.1 1. What is the disadvantage in comparing line segments by mere observation? Answer: The disadvantage in comparing line segments by mere observation is chance of error due to improper viewing. 2. Why is it better to use a divider than a ruler, while measuring the length of a line … [Read more...] about Exercise 5.1

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