Page 162 - MAT KS3 Y8 Cambridge CheckPoint
P. 162

16.1 Transforming shapes


               2  Copy each diagram. Use the translation you are given to draw the image of the object.
                  a                      b                      c                       d








                     3 squares right         2 squares right        4 squares left           1 square left
                      2 squares up          3 squares down           1 square up           3 squares down

               3  Copy each diagram. Use the information you are given to rotate the shape.
                  a  y                           b   y                          c   y
                                                    6                               6
                     6
                     5                              5                               5
                     4                              4                               4
                     3                              3                               3
                     2                              2                               2
                     1                              1                               1
                     0                              0                               0
                      01234567            x           0  1  2  3  4  5  6  7  x      0  1  2  3  4  5  6  7  x

                                 180 °                      90 ° clockwise               90 ° anticlockwise
                             centre (4, 4)                   centre (4, 3)                  centre (4, 3)
               4  The diagram shows triangle A. Make three copies of the diagram.          y
                    Draw the image of A after each combination of transformations.         6
                  Use a different copy of the diagram for each part.                       5      A
                  a   a translation 4 squares right and 1 square down followed by          4
                     a reflection in the line y = 3                                        3
                  b   a rotation of 90 ° anticlockwise, centre (3, 5) followed             2
                     by a translation 3 squares right and 2 squares down                   1
                  c   a reflection in the line x = 4 followed by a rotation of 180 °,      0                     x
                                                                                            0  1  2  3  4  5  6  7
                     centre (6, 4).
               5  The diagram shows five triangles, A to E.
                  Here are four transformations.
                  a   a translation 3 right and 1 down followed by a reflection in          y
                                                                                           6
                     the line y = 3                                                                     B        E
                                                                                           5
                  b   a reflection in the line x = 4 followed by a reflection in
                                                                                           4
                     the line y = 2                                                             D
                                                                                           3
                  c   a rotation 90 ° anticlockwise, centre (4, 5) followed by a                             C
                                                                                           2
                     translation 2 left and 2 down                                              A
                                                                                           1
                  d   a reflection in the line y = 4 followed by                           0
                     a rotation 90 ° anticlockwise, centre (7, 6)                            01234567            x
                    Work out which triangle is transformed to which other triangle
                  by each of the transformations.









      160      16 Position and movement
   157   158   159   160   161   162   163   164   165   166   167