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Easy

Question

Given XYZ is a triangle in which XW is the bisector of the angle x and XW ⊥ yz. Prove that xy= xz.

hintHint:

Find the congruence rule used and thus find whether sides are equal.

The correct answer is: XY = XZ




    In ΔXYW  and  ΔXZW
    straight angle W X Y equals straight angle W X Z(since XW is the bisector of angle X)
    straight angle X W Y equals straight angle X W Z(XW YZ)
    XW = XW (common side)
    Hence by ASA congruence rule, we have ΔXYW  ⩭   ΔXZW
    So, XY = XZ (Corresponding part of congruence triangles)

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