Suppose the earth to be a real sphere with the radius R. The arc distance from HK (N23) to the North pole is
- 0.9R.
- 1.2R.
- 2.2R.
Explanation from PART66Online
Hong Kong lies at about 23 degrees north, so the angular distance to the North Pole (90 degrees) is 90 - 23 = 67 degrees. Converting to radians, 67 * pi/180 is about 1.17, and the arc length is R times that angle, giving roughly 1.2R.
T
Tariq Taeem asked · 21 Jan 2012
i want to know how to find this answer.
Community Comments (1)
S
satishpandey
23 Jan 2014
total circumference of the earth = 2 pie r
arc length we need is with an angle of 90-23=67°
so the arc distance is (67/360) * 2 pie R = 1.17R
arc length we need is with an angle of 90-23=67°
so the arc distance is (67/360) * 2 pie R = 1.17R
Please Sign In to post a comment.