Surveying
If ‘δ’ is the declination of the Polaris and ‘λ’ is the latitude of the place, the azimuth of the Polaris, is

cos (90° - δ)/cos (90° - λ)
sin (90° - δ)/sin (90° - λ)
tan (90° + δ)/tan (90° + λ)
cos δ/cos λ

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Homologous points are

Nodal points of the camera lens
Plumb points of stereo pair of photographs
Opposite corners of a photograph
Corresponding points on the ground and photograph

ANSWER DOWNLOAD EXAMIANS APP