Pls help meeee!!!!!!: (SAT Prep) In △ABC, AB = BC = 20, DE ≈ 9.28. Approximate BD.
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The circumcenter of a right angled triangle is midpoint of the hypotenuse side.
Determine the midpoint of the hypotenuse.
For y coordinate,
So, circumcenter of triangle is,
To do this problem, you gotta cross-multiply. SO, 
multiplied by 
12 times 14 = 168
21 times 3 = 63
Then the final answer is
12 times 14 = 168
21 times 3 = 63
Then the final answer is