A is 1cm = 7.5 ft

B is 1cm = 3.75 ft
Above are two different models of the same pentagon. If the length of side B is 38 cm, what is the length of side a?

To find the length of side A, we first need to convert the length of side B from cm to ft using the scale given:

1 cm = 3.75 ft
38 cm = 38 cm * 3.75 ft/cm
38 cm = 142.5 ft

Now that we have the length of side B in feet, we can use the scale for side A to find its length:

1 cm = 7.5 ft
x cm = 142.5 ft

Solving for x:
x = 142.5 ft / 7.5 ft/cm
x = 19 cm

Therefore, the length of side A is 19 cm.