Answer:The width was 20 cm and was brought down to 5 cm, you can see that the pictures width was shrunk down 4 times because 20 divide by 4 is 5 so to find the length you would divide 30 by 4 and get 7.5 cm as your answer.
Step-by-step explanation: so rember what ever grade you are in do first 20 x 30 = 600 and 20 + 30 = 50
