Time at place a located on 40°E longitude is 10 am.What is the time at place Blocated at 60°W longitude.
Answers
Answer:
Refer to grid lines on a globe:
The lines running north-south represent degrees of Longitude, which is measured from the Prime Meridian in a east and west direction. These lines ar e known also as meridians.
The lines running east-west represent degrees of latitude which is measured from the equator in an north and south direction. These lines are known also as parallels.
The geographic grid used on the globe is based on the division of a circle in 360 degrees. Each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds .
Latitude is numbered from 0° degrees at the equator to 90° degrees at either pole.
Longitude is numbered from 0° degrees at the prime meridian to 180° degrees at the international date line.
A degree of latitude is approximately 69.171 miles at the equator and 69.171 miles at the poles. A degree of longitude is approximately 69.171 miles at the equator and 0miles at the poles.
LENGTH OF A DEGREE OF LONGITUDE: A degree of longitude varies in length at different latitudes, becoming shorter as the latitude increases. The table below illustrates this:
Length of a Degree of Longitude
At Latitude Statute Miles At Latitude Statute Miles
0 69.171 50 44.552
10 69.128 60 34.674
20 65.026 70 23.729
30 59.956 80 12.051
40 53.063 90 0.000
Based upon the above table, answer questions 7-12.
How do the length of parallels differ as one approaches the poles? => they decrease
What is the distance in miles around the world at the equator? => 24,901 miles
What is the distance around the world at 40 ° South Latitude? => 19,103 miles
At which latitude is the distance around