Mathematics · Geometry
ΔABC में, DE || AC है, जहाँ D और E क्रमशः भुजाओं AB और BC पर स्थित बिंदु हैं। यदि BD = 2 सेमी और AD = 19 सेमी है, तो ΔBDE के क्षेत्रफल का समलंब (trapezium) ADEC के क्षेत्रफल से अनुपात क्या है?
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