Please rectify cohesiveness mistakes in the text:
Two objects with different actual size have the same apparent size when they subtend the same angle. Two objects of the same actual size can have drastically varying apparent size when they are moved to different distances from the lens.
Two objects with different actual size have the same apparent size when they subtend the same angle. Similarly, two objects of the same actual size can have drastically varying apparent size when they are moved to different distances from the lens.