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5 Tutorials that teach Triangle Proportionality Theorem
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Triangle Proportionality Theorem
Common Core: G.SRT.4

Triangle Proportionality Theorem

Author: Graham Pardun

This lesson presents how to apply the triangle proportionality theorem to solve for unknown variables and side lengths.

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Using the Triangle Proportionality Theorem

If a line parallel to one side of a triangle intersects the other two sides, then it divides the two sides proportionally--and this fact can be used to solve some cool problems.