A 10-foot tree casts a 5-foot shadow. A nearby tree casts a 2-foot shadow at the same time. How tall is the nearby tree?
A3 ft
B4 ft
C6 ft
D8 ft
Answer & Solution
Correct answer: B. 4 ft
Similar triangles: tree/shadow ratio is the same for both trees. 10/5 = h/2, so h = 2 × (10/5) = 2 × 2 = 4 feet.
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