Mathematics · Geometry
ΔABC में, DE || AC है, जहाँ D और E क्रमशः भुजाओं AB और BC पर स्थित बिंदु हैं। यदि BD = 12 सेमी और AD = 11 सेमी है, तो ΔBDE के क्षेत्रफल का समलंब (trapezium) ADEC के क्षेत्रफल से अनुपात क्या है?
- 1390 : 413
- 2144 : 385✓
- 3385 : 144
- 4623 : 199
सही उत्तर देखें
144 : 385
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