ratio of visible distances of a boy on ground and on his father’s shoulders,=
Source: 2007 Sharygin Geometry Olympiad Correspondence Round P11
April 26, 2019
ratiogeometrydistance
Problem Statement
A boy and his father are standing on a seashore. If the boy stands on his tiptoes, his eyes are at a height of m above sea-level, and if he seats on father’s shoulders, they are at a height of m. What is the ratio of distances visible for him in two eases?
(Find the answer to , assuming that the radius of Earth equals km.)