Maps & Spherical Geometry
Math · Intermediate · Lesson 2 of 7

Latitude & Longitude

An address for every place

An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

  • Latitude measures north–south; longitude measures east–west.
  • One degree of latitude is about 111 km.
  • One degree of longitude is 111cos⁡φ111\cos\varphi km, shrinking towards the poles.

Steps

  1. Two angles
  2. Shrinking circles
  3. Oslo
  4. Find the latitude
  5. Above the Arctic Circle
  6. Defining the metre