Latitude and Longitude Lesson 10.7 Latitude and Longitude pp. 448-451
Objectives: 1. To define latitude and longitude as a means of global positioning. 2. To identify cities and countries given their latitude and longitude. 3. To relate terms on a sphere to global positioning via latitude and longitude.
International Date Line Greenwich, England equator prime meridian
Northern Hemisphere
Southern Hemisphere
Eastern Hemisphere
Western Hemisphere
longitudinal lines
longitudinal lines ALL longitudinal lines are great circles!
latitudinal lines Latitudinal lines are not congruent!
All longitudinal lines are great circles All longitudinal lines are great circles. The equator is the only latitudinal line that is a great circle.
Latitude is the degree measure of the arc from the equator to a particular location. Longitude is measured according to degree measure east or west from the prime meridian.
International Date Line west east equator prime meridian Greenwich, England east west equator
International Date Line north equator south prime meridian Greenwich, England south north equator
Homework pp. 450-451
■ Cumulative Review 27. The average radius of the earth is 3953 miles. Find the surface area to the nearest million square miles.
■ Cumulative Review 28. two circles Give a condition for the congruence of each pair of figures. 28. two circles
■ Cumulative Review 29. two parallelograms Give a condition for the congruence of each pair of figures. 29. two parallelograms
■ Cumulative Review 30. two segments Give a condition for the congruence of each pair of figures. 30. two segments
■ Cumulative Review 31. two cubes Give a condition for the congruence of each pair of figures. 31. two cubes