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    E:\Working\Brother_Education\Preparatory_Stage_Maths-3_(11-09-2024)\Open_Files\Answers
                 \ 11-Sep-2024  Sonia Suyal   Proof-1                                         Reader’s Sign _______________________ Date __________

                    17.  126                                                        Chapter 8. Symmetry and Patterns
                    18.  Smallest = 3078 ; Greatest = 8730 ; Difference = 5652  Practice Time 8A
                    19.  2030                                             1.  (d), (e),  (g),  (h)
                                    Chapter 7. Geometry
                                                                          2. (a)      (b)         (c)      (d)
                  Let’s Recall
                     1.  (a)  Square or Diamond, Two-way traffic
                       (b)  Circle, No entry                                (e)       (f)         (g)      (h)
                       (c)  Triangle, Left-hand curve
                       (d)   Rectangle, Electric vehicle charging station
                  Quick Check
                     1.  Straight path   2.  Line segment
                  Practice Time 7A                                        3. (a)       (b)     (c)      (d)

                     1.  (b)  Line,  AB  (c)  Line,  MN  (d)  Ray,  PQ
                     2.  (a)  4;  AB ,  BC ,  CD ,  DA  (b)  3;  PQ ,  QR ,  PR
                       (c)  5;  GH ,  HI ,  IJ ,  JK ,  KG  (d)  6;  EF ,  FG ,  GH ,  HI ,  IJ ,  JE  4. (a)  (b)  (c)

                     3.  4;  AE ;  BF ,  CG ,  DH
                     4.  (a)  Ray   (b)  6     (c)  1
                  Think and Answer                                      Practice Time 8B
                       Yes
                  Practice Time 7C                                        1.  (a)       (b)         (c)
                     1.  (a)  Circle   (b)  Triangle   (c)  Rectangle   (d)  Square
                     2.  (a)  8    (b)  13     (c)  14                    2.  (a)  2 2 2 0 0 0   2 0   2 2 0 0   2 2 2 0 0 0
                     3.  (a)  3    (b)  3      (c)  7
                     4.  (a)  Square   (b)  Rectangle   (c)  Circle   (d)  Triangle       (b)
                     5.  (a)  rectangle   (b)  triangle   (c)  circle   (d)  square
                     6.  (a)  T    (b)  T      (c)  F      (d)  F
                  Maths Fun                                               3.
                     1.  14        2.  15
                  Quick Check                                             4.  (a) 220, 270, 320        (b)  141, 151, 161
                     1.  Cuboid    2.  Sphere   3.  Cone   4.  Cylinder   6.  (c)  Def, Efg, Fgh        (d)  1075, 1085, 1095
                                                                            (a)  5
                  Practice Time 7D                                      Mental Maths    (b)  5
                     1.  (a)  Circle   (b)  Rectangle   (c)  Square   (d)  Triangle  1.  floor, chessboard   2.  Giraffe  3.  (a)   4.  R   5.
                     2.  Shape   Number of faces  Number  Number        Chapter Assessment
                          of                 of edges  of
                        Objects  Plane   Curved      vertices             1.  (a)  (iii)  (b)  (i)   3.  Rectangle, Square and Circle
                                faces  faces
                         Cube    6       0     12      8                  4.  (a)  D4, E5, F6   (b)   ,
                        Cuboid   6       0     12      8                  5.  8,   , 6
                         Cone    1       1      1      1
                                                                        Brain Sizzlers
                        Cylinder  2      1      2      0
                     3.  (a)  Yes   (b)  No    (c)  No     (d)  Yes             7   9     9   11
                       (e)  No     (f)  Yes                               1.
                  Practice Time 7E                                                16        20
                     1.  (a)  West   (b)  North  (c)  East   (d)  West
                  Brain Sizzlers                                          2.      11  4     20 11
                     1.  18                                                        7          9
                  Mental Maths
                     2.  3         3.  Sphere   4.  4                                   Chapter 9. Measurement
                  Chapter Assessment                                    Let's Recall
                     1.  (a)  (i)   (b)  (ii)   (c)  (i)                  1.  (a)  cm   (b)  cm   (c)  cm   (d)  cm   (e)  m   (f)  m
                     2.  (a)  5, 1, 2   (b)  16, 3, 1                     2.  (a)  g   (b)  kg   (c)  g   (d)  g   (e)  g   (f)  g
                     3.  Water bottles, Dry cell
                     4.  Ice-cream cone, Birthday cap                       (g)  g   (h)  g
                     6.  (a)  cone   (b)  cylinder   (c)  cuboid   (d)  sphere  3.  (a)  200 mL  (b)  5 mL  (c)  1 L   (d)  10 L
                       (e) cube                                           4.  (a)  metre  (b)  kilograms     (c)  litre   (d)  centimetres

                  Mathematics-3                                                                                         225

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