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Mind Expander
To prove that , we can use the Angle Bisector Theorem. This theorem states that if a ray bisects an angle of a triangle, it divides the opposite side into two segments that are proportional to the other two sides. In this case, bisects , so we have:
Substituting the known values:
This simplifies to:
Thus, .
According to the properties of ratios and similar triangles, since and are created by a transversal intersecting two parallel lines, we can conclude that . Hence proved!