This graph shows a constant increase from sunrise to sunset, which is not consistent with the data.
The correct graph would show maxima near sunrise and sunset and a minimum around noon. This graph represents an initial increase, then a leveling off, from sunrise to sunset, which is not consistent with the data.
This graph represents a constant shadow length throughout the day and not maxima near sunrise and sunset and a minimum around noon.
Shadows AE represent measurements taken in chronological order at various times during a day starting one hour after sunrise and going until one hour before sunset. The data from both experiments show that at a given site, on a given day, the shadow length is longest just after sunrise, decreases to a minimum length at noon, then increases again until it reaches a maximum one hour before sunset. The data are represented best in this figure.