A car made 60-mph trop an average speed of 20 mph. On the return trip, the cars average speed was 30 mph. What was the average speed for the entire two way trip?

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's

Gotta be d the music of previous eras