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