Gyan ganga coaching centre amaon class 10th ke maths ka cheptar 6ka

थेल्स प्रमेय (Theorem): यदि किसी त्रिभुज की एक भुजा के समानांतर दूसरी रेखा खींची जाए, जो शेष दोनों भुजाओं को अलग-अलग बिंदुओं पर काटती है, तो वह उन दोनों भुजाओं को समान अनुपात में विभाजित करती है। चित्रानुसार: यदि ΔABC में D, AB पर तथा E, AC पर हों और DE ∥ BC, तो शर्त (Condition): D, AB पर हो। E, AC पर हो। DE, BC के समानांतर हो। महत्त्व: बोर्ड परीक्षा में अत्यंत महत्वपूर्ण अध्याय। अनुपात (Ratio) से जुड़े प्रश्न हल करने में उपयोगी। त्रिभुजों की समानता (Similarity) का आधार। याद रखने की ट्रिक: "समानांतर रेखा ⇒ समान अनुपात" यह प्रमेय बिहार बोर्ड, CBSE तथा अन्य राज्य बोर्डों की कक्षा 10 गणित के लिए बहुत महत्वपूर्ण है।

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Bihar Education Academy is live!

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Bihar Education Academy is live!

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Bihar Education Academy is live!

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