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In the following figure, DE || AC and DC || AP. Prove that : BEEC=BCCP\dfrac{BE}{EC} = \dfrac{BC}{CP}.

In the following figure, DE || AC and DC || AP. Prove that : BE/EC = BC/CP. Similarity, Concise Mathematics Solutions ICSE Class 10.

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Answer

Given, DE || AC

In △BAC,

By basic proportionality theorem,

BEEC=BDAD\dfrac{BE}{EC} = \dfrac{BD}{AD} …..(1)

Given, DC || AP

In △BPA,

By basic proportionality theorem,

BCCP=BDDA\dfrac{BC}{CP} = \dfrac{BD}{DA} …..(2)

BEEC=BCCP\dfrac{BE}{EC} = \dfrac{BC}{CP}.

Hence, proved that BEEC=BCCP\dfrac{BE}{EC} = \dfrac{BC}{CP}.

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