Introduction to enlargements | Maths | Quizalize & Oak National Academy

Starter quiz

The object is what we call a shape after it has been transformed.

True
False ✓
Which property is not invariant when a shape is translated?

side lengths

angles

position ✓

orientation
Which properties are not invariant when a shape is rotated?

side lengths

angles

position ✓

orientation ✓
Which properties are not invariant when a shape is reflected?

side lengths

angles

position ✓

orientation ✓
Match each number on the left with its multiple on the right. There is only one possible solution.

2

⇔

6 ✓

3

⇔

9 ✓

4

⇔

16 ✓

5

⇔

30 ✓
Which of these is the correct location of the reflected image of vertex A?

a

b

c

d ✓

__________ is a transformation that causes a change of size.

'Enlargement' ✓
Two shapes are ______ if the only difference between them is their size.

'similar' ✓
Enlarging a shape means the shape will always get bigger.

True
False ✓
Which property is invariant when a shape is enlarged?

side lengths

angles ✓

position
Sofia is going to halve the size of a rectangle. What will happen to the angles?

They will all double in size.

They will all stay the same size. ✓

They will all halve in size.
Aisha's rectangle has a length of 6 cm and a width of 1.3 cm. A similar rectangle has a length of 18 cm. What will its width be?

1.3 cm

2.6 cm

3.9 cm ✓

5.2 cm

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Enlargement only refers to an increase in size.

The transformation 'enlargement' refers to a change of size that can be either a stretch or a shrink.

Enlargement - Enlargement is a transformation that causes a change of size.
Similar - Two shapes are similar if the only difference between them is their size. Their side lengths are in the same proportions.