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Please help me I don’t understand, find the missing side length

Please help me I don’t understand, find the missing side length-example-1
User Jack White
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1 Answer

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Given:

The length of the sides of the triangles is given.

Required:

Find the length of the missing side.

Step-by-step explanation:

Let the length of the missing side is x.

By using the triangle proportionality theorem


(5)/(2)=(x)/(14-x)

solve the equation by cross multiplication.


\begin{gathered} 2x=5(14-x) \\ 2x=70-5x \\ 7x=70 \\ x=(70)/(7) \\ x=10 \end{gathered}

Final Answer:

The missing length will be

User JP Hellemons
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