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Line DE is parallel to side BC of triangle ABC. If AD = 5 cm, DB = 10 cm, and the area of triangle ABC is 90 sq cm, find the area of triangle ADE (in sq cm).

Class 10Basic Proportionality TheoremGeometry — Similarity
  • A10
  • B20
  • C11
  • D9

Step-by-Step Solution

, so area ADE = sq cm.
Answer: A) 10

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