A quadrilateral with only one pair of parallel sides is called a

A) rectangle
B) square
C) rhombus
D) trapezoid

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

In the diagram below,abc is congruent to dec what is the value of x