Similar Triangles and the Triangle Proportionality Theorem

Similar Triangles and the Triangle Proportionality Theorem

by Ben McCray

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Solve for x in the proportion below.

$\frac{18}{x}\ =\ \frac{4.5}{12}$  

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Solve the equation below for x. Remember to use the distributive property first.

5(3x + 7) = 8(2x + 4)

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Use the Triangle Proportionality Theorem to find WX.

​Review of Algebra 1 solving 1 variable equations.

​1. Group all the variables together with 1 coefficient.

​2. Isolate the variable term.

​3. Use the inverse operation to solve.

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​Ex. 2(x - 7) = 3(2x + 2)

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Solve for s using the triangle proportionality theorem.