(a) A(7,8),B(12,8)
(b) E(-2,9),F(6,9)
(c) C(-5,-5),D(-5,8)
(d) G(7,9),H(7,23)
更新1:
Given that A(5,3),B(-2,3),C(0,4) and D are the vertices of a rectangle ,find the coordinates of D and the area of the rectangle ABCD.
更新2:
上面的不用理(答下面的) 1 Find the distance between each of the following pairs of points: (a) A(7,8),B(12,8) (b) E(-2,9),F(6,9) (c) C(-5,-5),D(-5,8) (d) G(7,9),H(7,23) 2 Given that A(5,3),B(-2,3),C(0,4) and D are the vertices of a rectangle ,find the coordinates of D and the area of the rectangle ABCD.