Question
Download Solution PDFΔABC में, DE || BC और \( {AD \ {} \over DB} = {4 \ {} \over 5}\) है, यदि DE = 12 cm है, BC की लंबाई ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFप्रयुक्त संकल्पना:
दिए गए चित्र के अनुसार, ΔABC में, यदि DE ∥ BC है, तब AD/AB = DE/BC
गणना:
दी गई संकल्पना के अनुसार,
AD/AB = DE/BC
⇒ 4/(4 + 5) = 12/BC
⇒ BC = (9 × 12)/4
⇒ BC = 27
∴ सही उत्तर 27 है
Last updated on Jul 9, 2025
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