Mathematics · Geometry
D and E are points on the sides AB and AC, respectively, of ΔABC such that DE is parallel to BC and AD : DB = 7 : 9. If CD and BE intersect each other at F, then find the ratio of the areas of ΔDEF and ΔCBF.
- 1256 : 49
- 249 : 256✓
- 349 : 81
- 449 : 144
Correct answer
49 : 256
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