How can wind speed and wind direction be derived from surface weather charts?

Question

Question Quiz SPL - Sailplane Pilot License - Meteorology

QuizVDS · Accepted Answer

By alignment and distance of isobaric lines

QuizVDS · Answer

By annotations from the text part of the chart

QuizVDS · Answer

By alignment and distance of hypsometric lines

QuizVDS · Answer

By alignment of lines of warm- and cold fronts.

Id 325 - SPL - How can wind speed and wind direction be derived from surface weather charts?