If AD = 3, BD = 6, then
AB = √3² + 6²
AB = √9 + 36
AB = √45
AB = 6.71
BD bisects angle B, therefore:
Angle A = 45 degrees
Angle C = 45 degrees
BC = 6.71
AC = 9.49 or 6.71 * √2)
If AD = 4, DC = 9, then
BD = 9
BC = 12.728 or 9 * √2
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