Question
If WXYZ is a kite, find the length of diagonal XZ.
- 10
- 12
- 14
- 18
The correct answer is: 14
From the above figure,
Given : WY 
XZ
XO = 7
( angular bisector)
In 
XWO and ZWO
WO = WO ( Common side)
Thus by ASA congruency rule XWO 
ZWO
Thus, XO = OZ = 7
Thus, the length of diagonal XZ is 14.
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