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In triangle ABC, DE is parallel to BC and divides the triangle so that area(ADE) = area(trapezium DBCE).
Thus triangle ADE ~ triangle ABC.
Find the ratio AD:AB.

Class 10Areas of Similar TrianglesGeometry — Similarity
  • A
  • B1:2
  • C1:4
  • D

Step-by-Step Solution

area(ADE) = half of area(ABC), so area ratio ADE:ABC = 1:2. AD:AB = .
Answer: A)

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