Lesson details

Key learning points

  1. In this lesson, we will learn how to draw and describe enlargements, observing the effects on the perimeters.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

Loading...

5 Questions

Q1.
Fill in the gap: We can combine a translation and a reflection by performing one ________________ after the other.
reflection
rotation
Correct answer: transformation
translation
Q2.
State the coordinate of Vertex A after being translated by the written vector.
(-2 2)
Correct answer: (0, 8)
(4, 0)
(4,4)
Q3.
State the coordinate of the vertex A when the triangle has been reflected in the given mirror line.
(-4, -2)
(-5, -2)
(-5, 0)
Correct answer: (-6, -2)
Q4.
Decide if this statement is true or false: Translating then reflecting is always the same as reflecting then translating.
Correct answer: False
True
Q5.
Select ALL the transformations that would transform shape A into shape B.
Correct answer: A
Correct answer: B
C
D

8 Questions

Q1.
Fill in the gap: We can enlarge shapes using a ___________.
centre of enlargement
factorise
line of enlargement
multiply
Correct answer: scale factor
Q2.
When you enlarge a shape by a scale factor which of the following will change?
None of the above
The 'form' of the shape (if it was a square it night not be a square anymore)
The angles
Correct answer: The perimeter
Q3.
Decide if the following is true or false: An enlarged shape will always be bigger.
Correct answer: False
True
Q4.
State the scale factor of enlargement for the transformation from A to B
1/4
1/8
Correct answer: 4
8
Q5.
State the scale factor of enlargement for the transformation from B to A
Correct answer: 1/4
1/8
4
8
Q6.
A is transformed to B. Which statement is correct?
None of the above
The perimeter of B is 1/4 times bigger than the perimeter of A.
The perimeter of B is 1/8 times bigger than the perimeter of A.
Correct answer: The perimeter of B is 4 times bigger than the perimeter of A.
The perimeter of B is 8 times bigger than the perimeter of A.
Q7.
A shape has a perimeter of 14 cm. What will the perimeter be after an enlargement by scale factor 5?
140 cm
19 cm
Correct answer: 70 cm
Need more information
Q8.
A shape has a perimeter of 14 cm. What will the perimeter be after an enlargement by scale factor 0.5?
14.5 cm
28 cm
Correct answer: 7 cm
70 cm
Need more information

Lesson appears in

UnitMaths / Transforming 2-D figures