Page 164 - MAT KS3 Y8 Cambridge CheckPoint

16.2 Enlarging shapes

✦ Exercise 16.2

1 Copy each of these shapes onto squared paper.
Enlarge each one using the given scale factors and centres of enlargement.
a scale factor 2 b scale factor 3 c scale factor 4

Make sure you
leave enough
space around
your shape to
complete the
enlargement
d scale factor 2 e scale factor 3 f scale factor 4

g scale factor 2 h scale factor 3 i scale factor 4

2 The vertices of this triangle are at (2, 2), (2, 3) and (4, 2). y
a Copy the diagram onto squared paper. 8
Mark with a dot the centre of enlargement at (1, 1). 7
Enlarge the triangle with scale factor 3 from the centre 6
of enlargement. 5
4
b Write down the coordinates of the vertices of the image.
3
2
1
0
0 1 2 3 4 5 6 7 8 9 10 11 x
3 The vertices of this trapezium are at (3, 2), (7, 2), (5, 4)
and (4, 4). y
a Copy the diagram onto squared paper. 6
5
Mark with a dot the centre of enlargement at (5, 2).
4
Enlarge the trapezium with scale factor 2 from the centre
3
of enlargement.
2
b Write down the coordinates of the vertices of the image.
1
0
0 1 2 3 4 5 6 7 8 9 10 x
162 16 Position and movement