Question

1''(second of arc or arc second) in radians

Answer 1

Answer:

arc second is 160 of an arcminute, 13600 of a degree, 11296000 of a turn, and π648000 (about 1206265) of a radian.

Answer 2

Answer:

Explanation:

1°=π/180 radians.

1''=1°×1/60×1/60=1°/3600

=π/3600×180 rad