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what is the great circle

plane throught the center of the globe

what is an arc

shortest distance between any two points

Equator is between ?

the 2 poles

lines of logitude

meridians

line of latitude

parallels

Meridians converge as you move towards

poles

a nautical mile is?

1 minute of longitude at the equator

every degree at the equator is

60 nautical miles

Equator defines

0 degrees latitude at the pole

Prime meridian

the meridian running through Greenwich, England, from which longitude east and west is reckoned

Latitude

an imaginary line around the Earth parallel to the equator

when meridians and parallels meet they for a

Grid

Lat and Long meet at

a confluence

wher eis the artic circle

66 degrees 33 minutes

artic has all sun and all dark at the

solstice

Meridians were surveyed in

westward direction

first meridian is the

principal meridian

what degree is the first meridian

97 degrees 30 minutes

2nd meridian

102

3 meridian

106, so it went up 4 not 2 this time

4 meridian

110

5 meridian

115

6 meridian

118

wher is the prime meridian

0 degrees at greenwhich

Greenwhich is how many hours away from us?

7 hours

where is the dateline?

180 degrees east and west long

equator is 0 degrees north and south

latitiude

what degrees is the north pole

90 degrees lat

How many time zones are there?

24

Quadrilateral townships

start at 49 and go north then west from meridian

townships go north

from 1 to 126

how big is a township

6 mile by 6 miles, 36 miles squared