Problema Solution
If a 6ft man casts a shadow that is 2.5ft long, how tall is a tree that has a shadow 10ft long?
Answer provided by our tutors
let 'x' be the height of the tree
the ratio of the mans heights (6 ft) and hiss shadow (2.5 ft) equal the ratio of the height of the tree over 10 ft:
5 : 2.5 = x : 10
by solving the proportion we find
x = 20 ft
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the tree is 20 feet tall.