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# Enlargements with a centre

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## Mr Mattock

on 30 January 2016

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#### Transcript of Enlargements with a centre

Enlargements with centres
Starter
Enlarging Shapes (with a centre of enlargement)
L.O.- To enlarge 2D shapes, given a centre of enlargement and a scale factor (Level 6)
STARTER
63 because its the only number in the 9 times tables
77 because its the only digit with 2 numbers the same
20 because its the only number not in the 7 times table
49 is the only square number
56 is the only multiple of 8

Main Activity
Complete the Red, Amber, Green
sheet.

Try and complete all 3.
Describing an enlargement
What is the scale factor?

Where is the centre of enlargement?
Describing an enlargement
What is the scale factor?
2

Where is the centre of enlargement?
Main Activity 2
Describe fully the enlargements on
the sheet.
Scale factor = 2
COE = (4, 9)

Scale factor = 3
COE = (-4, -7)
Scale Factor = 2
COE = (4,0)

Scale Factor = 3
COE = (-4,0)
Scale Factor = 6
COE = (3,8)

Scale Factor = 2
COE = (-6, -9)
Activity