GEOMETRY, 2008

 PAGE: 410 SET: Exercises PROBLEM: 2
Please look in your text book for this problem Statement

From the , the lines and are parallel, .

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

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

sides into segments of proportional lengths.

Since , .

Find LT.

(Apply Segment addition postulate)

(Substitute )

(Subtract 3 from each side)

Use the proportion to determine WS.

(Write the proportion)

(Substitute )

(Apply cross products property)

(Multiply: )

(Divide each side by 3)

The measure of WS is 10.

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