如图,⊙O的半径为1,点P是⊙O上一点,弦AB垂直平分线段OP,点D是

如图,⊙O的半径为1,点P是⊙O上一点,弦AB垂直平分线段OP,点D是APBˆ上任一点(与端点A. B不重合)，DE⊥AB于点E，以点D为圆心、DE长为半径作⊙D，分别过点A. B作⊙D的切线，两条切线相交于点C.

結果 (英文) 1:

Figure, ⊙ o radius 1, on the point p is ⊙ o, string AB perpendicular bisector OP, point d is the APB ˆ one point (with the endpoint a. B do not coincide), DE ⊥ AB in point e, the RADIUS in point d is the Center, long DE ¡ñ d, respectively, point a. B ¡ñ d tangent to two tangent lines intersect at the point c.

結果 (英文) 2:

As shown, the radius ⊙O 1, point P is a point ⊙O, vertical chord AB bisects segment OP, point D is any point APB (A. B does not coincide with the endpoint), DE⊥AB at point E, point D as the center, DE long radius for ⊙D, respectively, through the point A. B for ⊙D tangent, two tangents intersect at point C.

結果 (英文) 3:

In figure O, the radius is 1, P is a O / AB string, perpendicular bisector line OP, D is APB goes any point (does not coincide with the end of A. B), DE AB group in E, D, DE as the center to make its D long radius A. B respectively the tangent / D, two tangent lines intersect at point C.