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# Latitude and longitude

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### Transcript

• 1. Latitude and LongitudeA MATHEMATICAL PRESENTATION BY VICTORIA OLSON APRIL 18, 2012
• 2. Latitude and Longitude basics Latitude is horizontal lines, East & West Longitude is vertical lines, North & South Written (°Latitude, °Longitude) (-, +) (+, +) (-, -) (+, -)
• 3. Point directly opposite Miami? Miami is 26°N, 80°W So, opposite of 26°N= 26°S For longitude, subtract 180°. Go East to 0°, then you have 100° left to go, until 100°E Point opposite= 26°S, 100°E (Indian Ocean)
• 4. Digging a hole to China? Are China and US opposite from each other? Nope US is on Northern Hemisphere; point opposite must be in Southern Hemisphere China is in the Northern Hemisphere
• 5. How far have you traveled in miles?Travel 1° latitude N Travel 1° longitude W Earth’s  Lines of longitude are Circumference= NOT parallel. Closer 25,000 miles together near poles Measurement of  Will also be 69.4 mi, degrees= 360° but only on equator 25,000 mi/360°=  Varies as you go N or S about 69.4 mi/degree