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What’s the ratio of the lengths from BE to CD ?

What’s the ratio of the lengths from BE to CD ?-example-1
User Rmbianchi
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1 Answer

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16 votes

From the cartesian plane shown, we can bring out two right triangles with their sides gotten from the coordinates of the points given as shown below;

From the figure above,

let BE = x

CD = y

By similarity, the corresponding ratio of the lengths of similar triangles are equal

The triangles ABE and ACD are similar, hence the ratio of their lengths will be equal

By similarity,


\begin{gathered} (x)/(4)=(y)/(6) \\ C\text{ ross multiplying;} \\ 6x=4y \\ \text{Hence,} \\ (x)/(y)=(4)/(6) \\ (x)/(y)=(2)/(3) \\ (BE)/(CD)=(2)/(3) \end{gathered}

Therefore, the ratio of lengths of BE to CD is 2/3.

What’s the ratio of the lengths from BE to CD ?-example-1
User Cogsy
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2.4k points