3 (Refer to FAA-CT-8080-2G, Figure 26.) What does the line of latitude at area 4 measure?
B. The degrees of latitude north and south from the equator.
There are several nmemonics to remember latitude versus longitude. I prefer to rhyme LATTitude with LADDer.  Lines of latitude are parallel to the equator, and lines of longitude go from the North Pole to the South Pole.
The longitude and latitude lines on the Sectional Chart have a tick for every minute of longitude or latitude, a larger tick every 5 minutes and a larger tick every 10 minutes. The tick marks are easy to see in this unobstructed view from the side and bottom of the SFO chart.
The solid lines are 30' (30 minutes) apart, each small tick mark is one minute with a bigger tick mark every 10'. (there are 60 minutes in one degree).
Lines of Latitude start at 0° at the equator and increase to 90° at the poles. Lines of Longitude start at 0° at Greenwich, England (also called the Prime Meridian) and increase to 180° on the other side of the globe at the International Date Line. In North America you will encounter Latitude as "Degrees North", and Longitude as "Degrees West", because we're north of the equator and west of the Prime Meridian.
This is correct.
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