Spherical Trigonometry Flashcards
1
Q
Are triangles enclosed by arcs of three grade circles of sphere
A
Spherical triangle
2
Q
Circles passing through the center of the circle, its diameter passes through the center
A
Great circles
5
Q
True or false: the sum of the interior angles of a spherical triangle is greater than 180° and less than 540°
A
True
6
Q
Is a great circle passing through the north and south poles
A
Meridian
7
Q
It is a great circle perpendicular to the meridians
A
Equator
8
Q
______ are small circles parallel to the equator its measure is 0° to 90°
A
Latitudes
9
Q
_______ is the Meridian, passing through Greenwich, England
A
Prime Meridian
10
Q
GMT stands for-
A
Greenwhich Mean Time
11
Q
Radius of the earth
A
6373 (6400) km or 3959 miles
12
Q
One nautical mile conversion in ft
A
=6080 ft
