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Question
खालील आकृतीमध्ये जीवा MN आणि RS एकमेकींना बिंदू D मध्ये छेदतात. जर RD = 15, DS = 4, MD = 8, तर DN = किती?

Sum
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Solution
RD = 15, DS = 4, MD = 8
जीवांच्या अंतर्छेदनाच्या प्रमेयावरून,
MD × DN = RD × DS
8 × DN = 15 × 4
8 × DN = 60
DN = `60/8`
DN = `15/2`
∴ DN =7.5
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