DE is drawn parallel to BC in triangle ABC, with AD = 4 cm and DB = 6 cm. If BC = 15 cm, find DE (in cm). (Hint: triangle ADE is similar to triangle ABC.)
Class 10Basic Proportionality TheoremGeometry — Similarity
A12
B6
C7
D5
Step-by-Step Solution
DE∣∣BC means triangle ADE ~ triangle ABC.ABAD=BCDE,104=15DE,DE=6 cm.
Answer: B) 6
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