Enlarging road signs

This task is about scale factors and enlargement.

Question 1Change answer

a)
In the photograph of the GIVE WAY sign, the length of one side is 2 cm. The length of that same side on the actual street sign is 60 cm.
 
small-give-way-sign.png

Photograph
measurements
large-give-way-sign.png
Actual street sign measurements

[Not drawn to scale]
 
i)
ii)
What is the scale factor for this enlargement? 
The length of another side of the sign in the photograph is 3 cm.
What would be the length of this same side on the actual street sign? x =  cm.

Question 1Change answer

b)
In the photograph of the STOP sign, the length of one side of the sign is 2 cm. The length of that same side on the actual street sign is 20 cm.
 
small-stop-sign.png
Photograph
measurements		 large-stop-sign.png
Actual street sign measurements

[Not drawn to scale]
     i)    What is the scale factor for this enlargement? 
     ii)   The area of the actual street sign is 2000 cm2
            What do you need to divide this number by to get the area of the street sign in the photograph?
             cm.