A. C. Consecutive sides are parallel. 2) consecutive angles are supplementary . Opposite angles are congruent. Property that is characteristic of a parallelogram is that opposite sides are congruent. SURVEY . Q. A rectangle is a parallelogram because all of its sides are parallel, but a parallelogram is not a rectangle because it does not have all right angles. Sue. C. The diagonals are perpendicular. A ll rectangles are not squares but a ll squares are rectangles. Thus all parallelograms have all the properties listed above, and conversely, if just one of these statements is true in a simple quadrilateral, then it is a parallelogram. Classify Quadrilateral as parallelogram A classic activity: have the students construct a quadrilateral and its midpoints, then create an inscribed quadrilateral. Opposite sides are congruent. The bad in Answer A is due to your teachers written grammar. Asked 10/8/2015 9:06:14 AM. There is a point X in the plane of the quadrilateral with the property that every straight line through X divides the quadrilateral into two regions of equal area. Opposite sides are congruent. The opposite angles are congruent. Consecutive angles are congruent. However, the statement that all parallelograms are rectangles is false. 8 years ago. A. Diagonals that bisect each other B. Diagonals that bisect opposit angles C. Two pairs of opposite congruent sides D. Two pairs of opposite congruent angles Answer by jim_thompson5910(35256) (Show Source): Then ask the students to measure the angles, sides etc.. of inscribed shape and use the measurements to classify the shape (parallelogram). It has been illustrated in the diagram shown below. answer choices . 4 Answers. Lv … 2 Answers. Solutions: (a) False. Anonymous. No. B. Question 548775: Which is NOT always a property of a Parallelogram? 3) opposite sides are congruent. 0 0. Still have questions? D. At least one pair of opposite sides is parallel and congruent. All of the angles are congruent. The opposite sides are congruent. B. it … 1. Diagonals are congruent. Which of the following is not a property of all parallelograms? Opposite angles are congruent. Which property is true of all parallelograms? Question. D. Opposite sides are perpendicular. Read this: The property that is NOT characteristic of a parallelogram is opposite sides are not congruent. It is a true statement to say that all rectangles are parallelograms. (b) True. Which of the following properties is not true for all parallelograms? Answer Save. 60 seconds . (g) All parallelograms are trapeziums. One has to be on the lookout for double negatives. Relevance. That is true. A quadrilateral with exactly one … The parallelogram has the following properties: Opposite sides are parallel by definition. So, All squares are parallelograms. Property 1 : If a quadrilateral is a parallelogram, then its opposite sides are congruent. (h) All squares are trapeziums. Properties of Parallelogram. Opposite sides of parallelogram are equal and parallel but all angles are not equal only opposite angles are equal. 1 Answer. 4) opposite angles are congruent. Relevance. Consecutive angles are supplementary. 9 years ago. Which property is true of all parallelograms? Tags: Question 12 . Favorite Answer. Go with B. Get your answers by asking now. These properties concern its sides, angles, and diagonals. Lv 7. Krishnamurthy. Answer Save. The consecutive sides are congruent. B. All sides and angles of a square are equal. Consecutive angles are supplementary. The properties of the parallelogram are simply those things that are true about it. Which property is NOT true for all parallelograms? All of the sides are congruent. The consecutive angles are supplementary. Log in for more information. The diagonals bisect each other. 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