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Chapter 5 Finals Review Always True, Sometimes True, Never True Special instructions: for conditional statements, if the conclusion can be true (but is not necessarily true) even if the hypothesis is true, answer sometimes true. For example, the statement “if a number is not negative, then its square is positive” is sometimes true. A square is a rhombus. A trapezoid is a parallelogram. If two lines are parallel, then their same-side exterior angles are supplementary. A trapezoid has a right angle. Corresponding angles are congruent. If two same-side interior angles are congruent, then the lines are perpendicular. A rhombus is a square. The three diagonals of a square meet intersect at the same point. If two same-side exterior angles are congruent, then the lines are parallel. A quadrilateral with three congruent sides is a parallelogram. The diagonals of a rectangle bisect the angles of the rectangle. An equilateral parallelogram is also equiangular. Alternate interior angles are congruent. A quadrilateral with three congruent sides is a trapezoid. A quadrilateral with three congruent sides is a rhombus. The diagonals of a kite are perpendicular bisectors of each other. A kite is a trapezoid. The diagonals of an isosceles trapezoid bisect each other. A rectangle is a parallelogram. A kite is a square. Alternate exterior angles of parallel lines are congruent. If two lines are parallel, then their same-side interior angles are congruent. A trapezoid is a rhombus. The diagonals of a quadrilateral are perpendicular bisectors of each other. The diagonals of a rectangle create four isosceles triangles. A trapezoid has three right angles. An isosceles trapezoid is a parallelogram. The diagonals of a rectangle divide the rectangle into four congruent right triangles. The diagonals of a rhombus are congruent. An equilateral rectangle is a square.