If Earth were smaller than it is, but the Alexandria-to-Syene distance were the same, would the shadow of the vertical pillar in Alexandria be longer or shorter at noon during the summer solstice?

The shadow cast by a vertical pillar in Alexandria at noon during the summer solstice is found to be 1/8 the height of the pillar. It is found by the ratio between Pole shadow/pole height=alexandria and syene distance /earth radius Here earth would be smaller means the distance between the...