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(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
= 2,则BD的长为 ( )A.4 3 2 1
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(3,2) (-2,-3) (2,3)或(-2,-3) (3,2)或(-3,-2)
5 cm 10 cm 15 cm 7.5 cm
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)