Answer:
0.15m
Explanation:
Given the following :
angular diameter = 22 arc seconds
Distance = 1400 m
The linear diameter(D) could be calculated using the small angle formular :
Where ;
D = (angular size × distance) / 1 radian
Note :
1 radian = 360°/2pi = 360/(2 × 3.14) = 57.296°
1° = 3600 arc seconds
57.296° × 3600 = 206265.6
Therefore,
D = (22 × 1400) / 206,265.6
D = 30800 / 206,265.6
D = 0.1493220
