Page 186 - Maths Skill - 3

184 Maths

Exercise 8.5

1. 3 triangles 2. 2 quadrilaterals 3. Do it yourself.
Assessment Time
A. 1. b 2. b 3. b 4. b 5. a 6. b 7. a B. 1. Football, Globe

2. Birthday cap, Ice-cream cone 3. Ice cube, Dice 4. Match box, Book 5. Chalk, Battery cell
C. (a) (ii) (b) (iv) (c) (v) (d) (iii) (e) (i) D. 1. c 2. d 3. a 4. c

CHAPTER - 9: PATTERNS AND SYMMETRY

Boot-up

;
⇓ ⇒
^ ^
^ ^
^ ^
Exercise 9.1

1. (a) , (b) , (c) , (d) ,

2. (a) (b) , (c) , (d) ,
,

Exercise 9.2

1. (a) 10, 12, 14, 16, 18, 20 (b) 19, 23, 27, 31, 35, 39 (c) 10, 8, 6, 4, 2, 0

(d) 43, 41, 39, 37, 35, 33 (e) 15, 18, 21, 24, 27, 30
2. (a) 300, 400, 500, 600, 700, 800, 900 (b) 222, 225, 228, 231, 234, 237, 240 (c) 118, 123, 128, 133, 138, 143, 148

Exercise 9.3
Do it yourself.

Exercise 9.4

1. (a) No (b) Yes (c) Yes (d) Yes (e) No (f) Yes

2. (a) (b) (c)

Assessment Time
A. 1. b 2. c 3. a

B. 1. (a) (b) , , 2. (a) (b)
, ,

3. (a) 28, 33, 38, 43 (b) 50, 60, 70, 80 (c) 32, 37, 42, 47 (d) 16, 19, 22, 25