enlargement - 

changing the size of an object while maintaining the same proportions

reflection - 

flipping an object over a fixed line

rotation - 

turning an object by a fixed amount and around a fixed point

translation - 

moving every point of an object by the same distance and direction

$$a \text{ cm}$$ - 

4 cm

$$b\text{ cm}$$ - 

3 cm

$$c\text{ cm}$$ - 

5 cm

$$a \text{ cm}$$ - 

26 cm

$$b \text{ cm}$$ - 

30 cm

$$c\text{ cm}$$ - 

10 cm

$$d\text{ cm}$$ - 

34 cm