Lecture 2

Question 1

Eratosthenes measured the 1)——– of the earth to be ———which is——– km

Answer 1

1) circumference
2)250000
3)42000

Question 2

at the time the sun was 1) —– south of the zenith as seen from 2)——–, the sun was at the zenith in 3)———

Answer 2

1) 7 degrees
2)Alexandria
3)Syene

Question 3

Based on this measurements taken at alexandria and syene Eratosthenes concluded that they must be 1) degrees apart

Answer 3

7