Ex 9.3, 7 - D and E are points on sides AB and AC of ABC - Ex 9.3

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Ex 9.3, 7 D and E are points on sides AB and AC respectively of ABC such that ar (DBC) = ar (EBC). Prove that DE BC. Given: ABC where D and E are points on sides AB and AC such that ar (DBC) = ar (EBC) To prove: DE BC Proof : DBC and EBC are lying on a common base BC and have equal areas, & they lie between the lines DE and BC. So, DE BC Hence proved

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.