Chapter 5 Data Handling Exercise 5.3
Chapter 5 Data Handling Exercise 5.3 Question 1. List the outcomes you can see in these experiments. (i) Spinning a wheel (ii) Tossing two coins together Solution: (i) On spinning the wheel, we can get the following outcomes B, C, D, E and A. (ii) When two coins are tossed together, we get the following […]
Chapter 5 Data Handling Exercise 5.2
Chapter 5 Data Handling Exercise 5.2 Question 1. A survey was made to find the type of music that a certain group of young people liked in a city. The adjoining pie chart shows the findings of this survey. From this pie chart answer the following: (i) If 20 people liked classical music, how many […]
Chapter 5 Data Handling Ex. 5.1
Chapter 5 Data Handling Ex. 5.1 Question 1. For which of these would you use a histogram to show the data? (i) The number of letters for different areas in a postman’s bag. (ii) The height of competitors in an athletics meet. (iii) The number of cassettes produced by 5 companies. (iv) The number of […]
Chapter 4 Practical Geometry
Chapter 4 Practical Geometry Question 1. Construct a quadrilateral PQRS, given that QR = 4.5 cm, PS = 5.5 cm, RS = 5 cm and the diagonal PR = 5.5 cm and diagonal SQ = 7 cm. Solution: Construction: Step I: Draw QR = 4.5 cm. Step II: Draw an arc with centre R and […]
Chapter 4 Practical Geometry Exercise 4.5
Chapter 4 Practical Geometry Exercise 4.5 Question 1. The square READ with RE = 5.1 cm. Solution: Construction: Step I: Draw RE = 5.1 cm. Step II: Draw an angle of 90° at E and cut EA = 5.1 cm. Step III: Draw two arcs from A and R with radius 5.1 cm to cut […]
Chapter 4 Practical Geometry Exercise 4.4
Chapter 4 Practical Geometry Exercise 4.4 Question 1. Construct the following quadrilaterals: (i) Quadrilateral DEAR DE = 4 cm, EA = 5 cm, AR = 4.5 cm, ∠E = 60°, ∠A = 90° (ii) Quadrilateral TRUE TR = 3.5 cm, RU = 3 cm, UE = 4.5 cm, ∠R = 75°, ∠U = 120° Solution: […]
Chapter 4 Practical Geometry Exercise 4.3
Chapter 4 Practical Geometry Exercise 4.3 Question 1. Construct the following quadrilaterals: (i) Quadrilateral MORE MO = 6 cm, ∠R = 105°, OR = 4.5 cm, ∠M = 60°, ∠O = 105° (ii) Quadrilateral PLAN PL = 4 cm, LA = 6.5 cm, ∠P = 90°, ∠A = 110°, ∠N = 85° (iii) Parallelogram HEAR […]
Chapter 4 Practical Geometry Exercise 4.2
Chapter 4 Practical Geometry Exercise 4.2 Question 1. Construct the following quadrilaterals. (i) Quadrilateral LIFT LI = 4 cm IF = 3 cm TL = 2.5 cm LF = 4.5 cm IT = 4 cm (ii) Quadrilateral GOLD OL = 7.5 cm GL = 6 cm GD = 6 cm LD = 5 cm OD […]
Chapter 4 Practical Geometry Ex. 4.1
Chapter 4 Practical Geometry Ex. 4.1 Question 1. Construct the following quadrilaterals. (i) Quadrilateral ABCD AB = 4.5 cm, BC = 5.5 cm, CD = 4 cm, AD = 6 cm, AC = 7 cm (ii) Quadrilateral JUMP JU = 3.5 cm, UM = 4 cm, MP = 5 cm, PJ = 4.5 cm, PU […]
Chapter 3 Understanding Quadrilaterals
Chapter 3 Understanding Quadrilaterals Very Short Answer Type Question 1. In the given figure, ABCD is a parallelogram. Find x. Solution: AB = DC [Opposite sides of a parallelogram] 3x + 5 = 5x – 1 ⇒ 3x – 5x = -1 – 5 ⇒ -2x = -6 ⇒ x = 3 Question 2. In […]