**UALR (just outside the Physics Building):****Latitude = 34° 43’ 10.5’’ Longitude = 92° 20’ 39.0’’**

**Intersection of I****‐****40 and I****‐****430: Latitude = 34****°** **49****’** **08.2****’’** **Longitude = 92****°** **20****’** **39.0****’****’**

**Distance between the two points = 11.1 km**

Circumference of Earth (round to nearest km): __________ km (Show calculation.) and then (Explain clearly in words the concepts behind the calculation.)

Radius of the Earth (round to nearest km): __________ km (Show calculation.)

Percent error (Express as a percentage, one decimal place): __________ % (Show calculation.)

Record and/or calculate the following (round to one decimal place): Proportional diameter of the Moon: __________ cm

Proportional diameter of the Earth: __________ cm

Ratio of (Proportional Diameter of Earth)/(Proportional Diameter of Moon): ________ (Show calculation.)