$\"\"$

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From the $\"\"$ , the lines $\"\"$ and $\"\"$ are parallel, $\"\"$ .

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By Triangle Proportionality Theorem, in a triangle if a line is parallel to one side of the

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triangle and intersects the other two sides in two distinct points, then it separates these

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sides into segments of proportional lengths.

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Since $\"\"$ , $\"\"$ . $\"\"$

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Find LT.

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$\"\"$ (Apply Segment addition postulate)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Subtract 3 from each side) $\"\"$

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Use the proportion to determine WS.

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$\"\"$ (Write the proportion)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Apply cross products property)

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Divide each side by 3) $\"\"$

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The measure of WS is 10.