Angles and Directions Flashcards
(10 cards)
1
Q
T.M.A.G
A
True, Magnetic, Assumed, Grid
2
Q
sometimes known as the astronomic or geographic meridian
A
true meridian
3
Q
a fixed line of reference which lies parallel with the magnetic lines of the earth
A
magnetic meridian
4
Q
line parallel to the central meridian of a system of plane rectangular coordinates
A
grid meridian
5
Q
arbitrarily chosen fixed line of reference
A
assumed meridian
6
Q
M.R.D.G
A
mil, radian, degree, grad
7
Q
circle divided into 360
A
degree
8
Q
circle is divided into 100 centesimal minutes further divided into 100 centesimal seconds
A
grad
9
Q
circle is divided into 6400 _, 1600 _ is equal to 90°
A
mil
10
Q
angle subtended at the center of the circle
A
radian
