A pole 2 m tall casts a shadow 3 m long. At the same time a building casts a shadow 12 m long. How tall is the building in meters?
Answer and explanation
Correct answer: B. 8
- Step 1: The pole and the building form similar right triangles with their shadows.
- Step 2: H / 12 = 2 / 3, so H = 12 x 2 / 3 = 8.
Answer
8.
Why not the others: Adding the shadow difference to the height does not keep the ratio of height to shadow constant.
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