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Chapter 8: Perimeter and Area 5. 2500 m 6. 208 sq. m
Warm Up 7. Carpet with length = 15 m and breadth = 13 m 8. c
1. a. 26 units b. 24 units c. 26 units d. 26 units Mental Math
e. 40 units 1. b 2. a 3. c 4. b
HOTS
Poster (e) has the largest perimeter.

2. Yes, posters (a), (c) and (d) 1. Six 2. Four
3. a. 42 units squares b. 35 units squares
c. 42 units squares d. 42 units squares Chapter 9: Maps and Location
e. 91 units squares Warm Up
1. South 2. East 3. North 4. West
Exercise 8A
Exercise 9A
1. Shape b has largest perimeter.
1. a. West b. East c. North
2. a. 40 cm b. 320 cm c. 600 cm d. 32 cm
2. b. Panchkuian road c. Underground Parking
e. 468 cm f. 120 cm d. 6 blocks; A, B, C, D, E, F
3. a. i. 28 cm ii. 34 cm iii. 5 cm iv. 18 m e. Baba Kharak Singh Marg
b. i. 32 cm ii. 10 cm iii. 60 cm iv. 5 m 3. a. Tamil Nadu b. Arunachal Pradesh c. Chhattisgarh
4. a. 19 cm b. 51 cm c. 62 cm d. 22 m
d. Telangana e. 1020 km
5. 36 m
4. a. 12 b. `32 5. South
6. Rectangular park: 280 m, square park : 400 m; perimeter of square
6. a. (11, 2) b. (6, 6) c. (12, 9) d. Panda
park is 120 m greater. e. Monkey

7. 45 m 8. `36,250 9. 1632 m 10. 77 m Learning Logs
11. 38 cm 12. 54 cm 13. 27 cm 1. a. Jind b. Rewari c. Hisar d. North-west

14. Shortest 2. a. 8, 5 b. (3, 7) c. Pumpkin d. Cherry
Perimeter Largest Mental Math
Perimeter 1. a 2. b 3. c 4. a
HOTS

P = 16 1. Morigaon 2. South-east
P = 34 Chapter 10: Time
Warm Up
Exercise 8B
1. a. 3 sq. cm b. 6 sq. cm c. 9 sq. cm d. 15 sq. cm Country Clock Time Country Clock Time
2. a. 31 sq. cm b. 17 sq. cm c. 56 sq. cm d. 30 sq. cm
e. 22 sq. cm f. 30 sq. cm
3. a. 9 sq. cm b. 19220 sq. cm c. 324 sq. cm d. 9450 sq. cm Prayagraj 9:00 Rome 4:30
e. 1024 sq. cm f. 2700 sq. cm India Italy
4. a. i. 6 ii. 23 iii. 108 iv. 50

v. 28 vi. 17
b. i. 36 ii. 64 iii. 144 iv. 9

v. 121 vi. 169 Bagdad 6:30 Brasília 12:30
5. a. 240 sq. cm b. 140 sq. cm c. 10560 sq. cm Iraq Brazil
6. a. 256 sq. cm b. 1600 sq. cm c. 1156 sq. m
7. 34 m 8. `2,484 9. 1600 blocks
10. `4,800 11. 800 tiles 12. 480 sq. m 13. 900 sq. m

Beijing Cairo
Exercise 8C China 11:30 Egypt 5:30
1. a. 3 sq. units b. 6 sq. units c. 6 sq. units d. 10 sq. units
2. a. 6 sq. units b. 9 sq. units c. 9 sq. units d. 14 sq. units
e. 9 sq. units f. 14 sq. units g. 10 sq. units Exercise 10A
1. a. 5:40 a.m. b. 1:20 a.m. c. 12:20 a.m.
3. Area (in sq. units) 15 18 9 6 d. 12:29 p.m. e. 11:30 a.m. f. 4:40 p.m. g. 4:25 p.m.
h. 12 midnight i. 10:22 p.m. j. 9:38 p.m. k. 1:48 p.m.
Shape C D, E A, F, H, I, K B, G, J
l. 8:00 p.m.
Learning Logs 2. a. 06:05 hours b. 10:24 hours c. 00:06 hours d. 19:36 hours
1. a. 24 cm b. 53 cm e. 12:15 hours f. 14:17 hours g. 23:00 hours h. 04:57 hours
2. a. 368 sq. cm b. 288 sq. cm i. 00:00 hours j. 01:40 hours k. 15:30 hours l. 21:40 hours
3. a. 13 cm b. 17 m 3. a. → ii b. → iv c. → i d. → v e. → iii
4. a. 18 cm b. 4 m 4. a. 9:37 p.m. b. 5:00 p.m. c. 7:39 a.m. d. 12:55 a.m.

266 Mathematics 5