Question
Download Solution PDFDE एक जीवा है और KDE एक वृत्त का छेदक है। यदि KD = 9 सेमी, DE = 7 सेमी और KH, बिंदु H पर वृत्त की एक स्पर्श रेखा है, तो KH ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
DE एक वृत्त की जीवा है।
KD = 9 सेमी ; DE = 7 सेमी
प्रयुक्त अवधारणा:
यदि वृत्त के बाहर एक उभयनिष्ठ बिंदु से एक स्पर्श रेखा और एक छेदक रेखा खींची जाए, तो
स्पर्श रेखा2 = छेदक रेखा × (छेदक रेखा - जीवा)
गणना:
स्पर्श रेखा और छेदक संबंध से:
⇒ KH2 = KD × KE
⇒ KH2 = 9 × 16
⇒ KH = √144 = 12 सेमी
∴ सही उत्तर 12 सेमी है।
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