©MathsWatch
Clip 148
Enlargements
Grade 4 questions
y
5
4
1) a) Enlarge triangle T by scale
factor 2 using point (-5, 2) as
the centre of enlargement.
Label your new triangle U.
3
2
T
b) Enlarge triangle V by scale
factor a half using the point
(-2, -3) as the centre of
enlargement.
Label your new triangle W.
1
-5
-4
-3
-2
-1
x
O
1
2
3
4
5
-1
-2
V
-3
-4
-5
2) Describe fully the single transformation which maps triangle S to triangle T.
y
9
8
7
6
5
4
3
S
2
T
1
O
x
1
2
3
4
5
6
7
8
9
Page 148
©MathsWatch
Clip 148
Enlargements
Grade 4 answers
y
5
4
1) a) Enlarge triangle T by scale
factor 2 using point (-5, 2) as
the centre of enlargement.
Label your new triangle U.
U
3
2
T
b) Enlarge triangle V by scale
factor a half using the point
(-2, -3) as the centre of
enlargement.
Label your new triangle W.
1
-5
-4
-3
-2
-1
x
O
1
2
3
4
5
-1
-2
V
-3
W
-4
-5
2) Describe fully the single transformation which maps triangle S to triangle T.
Enlargement, scale factor 3, centre of enlargement (0, 3).
y
9
8
7
6
5
4
3
S
2
T
1
O
x
1
2
3
4
5
6
7
8
9
Page 148