Chapter 6 Squares and Square Roots Ex. 6.1
Chapter 6 Squares and Square Roots Ex. 6.1 Question 1. What will be the unit digit of the squares of the following numbers? (i) 81 (ii) 272 (iii) 799 (iv) 3853 (v) 1234 (vi) 20387 (vii) 52698 (viii) 99880 (ix) 12796 (x) 55555 Solution: (i) Unit digit of 812 = 1 (ii) Unit digit of 2722 = […]
Chapter 5 Data Handling
Chapter 5 Data Handling Very Short Answer Type Question 1. In the class interval 5-10, find the (i) lower limit (ii) upper limit (iii) class mark (iv) class size Solution: (i) lower limit = 5 (ii) upper limit = 10 (iv) Class size = 10 – 5 = 5 Question 2. A group of 20 […]
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 […]