During a half-moon phase, the Earth-Moon-Sun form a right triangle. If the Moon-Earth-Sun angle at this half-moon phase is measured to be 89.85°, the ratio of the Earth-Sun and Earth-Moon distances is closest to

If the number of sides resulting in a closed traverse is increased from three to four, the sum of the interior angles increases by

A surveyor observes a zenith angle of 93° 00′ 00″ during a theodolite survey. The corresponding vertical angle is

Among the following statements relating the fundamental lines of a transit theodolite, which one is CORRECT?