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Areas of Parallelograms and Triangles
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16/07/2021 4:13 pm
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D and E are points on sides AB and AC respectively of ΔABC such that ar(DBC) = ar(EBC). Prove that DE || BC.
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16/07/2021 4:15 pm
ΔDBC and ΔEBC are on the same base BC and also having equal areas.
∴ they will lie between the same parallel lines.
∴ DE || BC.