UK Secondary (7-11)
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Enlargements, Ratio and Scale Factors

Interactive practice questions

Triangle ABC has been enlarged to triangle A'B'C'. What is the scale factor?

$2$2

A

$\frac{1}{2}$12

B

$3$3

C

$1$1

D

$2$2

A

$\frac{1}{2}$12

B

$3$3

C

$1$1

D
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Triangle A'B'C' has been reduced to form a smaller triangle ABC. What is the scale factor?

Consider the following quadrilaterals.

Which unit do we use to express the scale factor?

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