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Whats the question
\(\dfrac{BP}{PC}=\dfrac{2}{3}\\ \dfrac{AP}{PD}=\dfrac{3}{5}\\\) Find ratio of area of \(\dfrac{\triangle ABP}{\triangle DPC}\)
|dw:1430934289344:dw|
Im sorry idk
@iGreen
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|dw:1430937515267:dw|\[\frac{A_{APB}}{A_{DPC}} = \frac{ \frac{1}{2} \left\| \vec{PB} \times \vec{PA} \right\|}{\frac{1}{2} \left\| \vec{PC} \times \vec{PD} \right\|} = \frac{ |\vec{PB}| | \vec{PA}| \sin \theta}{ |\vec{PC}| | \vec{PD} | \sin \theta} = \frac{ \frac{2}{5} |\vec{CB}| \frac{3}{8}| \vec{DA}| }{ \frac{3}{5} |\vec{BC}|\frac{5}{8} | \vec{DA} | } = \ \frac{6}{15} \ = \frac{2}{5}\]
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