The vertices of this polygon are A(3,-2),B(3,-4),C(-3,-4),D(-3,4)E(- 1,4),F(-1,-2). Find the perimeter and area of polygon ABCDEF

Which of the following best describes a basic postulate of euclidean geometry? a. all straight line segments have a midpoint. b. any straight line segment can be extended indefinitely. c. all right angles are formed from perpendicular segments. d. any two right angles are supplementary.