Chapter 6 Integers Ex 6.2
Chapter 6 Integers Ex 6.2 Question 1. Using the number line write the integer which is: (a) 3 more than 5 (b) 5 more than -5 (c) 6 less than 2 Solution: (a) 3 more than 5 Moving right 3 steps from 5, we reach at 8. Hence, 3 more than 5 = 8. (b) […]
Chapter 6 Integers Ex 6.1
Chapter 6 Integers Ex 6.1 Question 1. Write opposites of the following: (a) Increase in weight (b) 30 km North (c) 326 BC (d) Loss of ₹700 (e) 100 m above sea level. Solution: (a) Decrease in weight (b) 30 km South (c) 326 AD (d) Profit of ₹700 (e)100 m below sea level. Question […]
Chapter 5 Understanding Elementary Shapes
Chapter 5 Understanding Elementary Shapes Very Short Answer Type Question 1. Question 2. How many line segments are used in making a triangle? Solution: Three line segments are used to make a triangle. Question 3. What is the measure of straight angle? Solution: The measure of straight angle is 180°. Question 4. What is complete […]
Chapter 5 Understanding Elementary Shapes Ex. 5.9
Chapter 5 Understanding Elementary Shapes Ex. 5.9 Question 1. Match the following: Give two examples of each shape. Solution: (a) 4 ↔ (ii) Examples: (i) An ice-cream cone (ii) Birthday cap (b) ↔ (iv) Examples: (i) Tennis ball (ii) Cricket ball (c) ↔ (v) Examples: (i) A road roller (ii) A lawn roller (d) ↔ […]
Chapter 5 Understanding Elementary Shapes Ex. 5.8
Chapter 5 Understanding Elementary Shapes Ex. 5.8 Question 1. Examine whether the following are polygons. If any one among them is not, say why? Solution: (a) The given figure is not closed. Therefore, it is not a polygon. (b) The given figure is a polygon. (c) The given figure is not a polygon because every […]
Chapter 5 Understanding Elementary Shapes Ex. 5.7
Chapter 5 Understanding Elementary Shapes Ex. 5.7 Question 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 […]
Chapter 5 Understanding Elementary Shapes Ex. 5.6
Chapter 5 Understanding Elementary Shapes Ex. 5.6 Question 1. Name the types of following triangles: (а) Triangle with lengths of sides 7 cm, 8 cm and 9 cm. (b) ∆ABC with AB = 8.7 cm, AC = 7 cm and BC = 6 cm. (c) ∆PQR such that PQ = QR = PR = 5 […]
Chapter 5 Understanding Elementary Shapes Ex. 5.5
Chapter 5 Understanding Elementary Shapes Ex. 5.5 Question 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 a letter ‘L’. (d) The letter V. Solution: (a) Yes, the adjacent edges of a table top […]
Chapter 5 Understanding Elementary Shapes Ex. 5.4
Chapter 5 Understanding Elementary Shapes Ex. 5.4 Question 1. What is the measure of (i) a right angle (ii) a straight angle? Solution: (i) Measure of a right angle = 90° (ii) Measure of a straight angle = 180° Question 2. Say True or False: (a) The measure of an acute angle < 90° (b) […]
Chapter 5 Understanding Elementary Shapes Ex. 5.3
Chapter 5 Understanding Elementary Shapes Ex. 5.3 Question 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 […]