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At a certain time of the day a tree 15 m tall casts a shadow of 12 m while a second tree casts a shadow of 20 m How tall is the second tree?
Wiki User
∙ 14y ago
By Similar Triangles.
#1 is 15/12
#2 is x /20
Equating
15/12 = x/20
Algebraic rearrangement
x = 15 x 20 / 12
x = 300 /12
x = 25 m.
lenpollock
Wiki User
∙ 14y ago25 m
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