Answer:18
Step-by-step explanation: Square root of 18²-8²= 16.124.........
The square root of 16.124..........²+8²=18
Answer:
BC = 18
Explanation:
the diagonal AC is the perpendicular bisector of diagonal BD
this indicates the figure is a Kite with sides AB ≅ AD and BC ≅ DC
then
BC = DC = 18
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