b. ? Prove that both pairs of opposite sides are parallel. Write a proof to show that opposite sides of a parallelogram are congruent. c. No; you cannot prove that the quadrilateral is a parallelogram. A) The opposite sides of the parallelogram are congruent. Which statement can be used to prove that a given parallelogram is a rectangle? 1) In a parallelogram, opposite sides are equal. D) The opposite angles of the parallelogram are congruent. If one angle is right, then all angles are right. Strategy: how to prove that opposite sides of a parallelogram are equal. This Lesson (Proof of Opposite sides of a parallelogram are equal) was created by by chillaks(0) : View Source, Show About chillaks : am a freelancer In this lesson we will prove the basic property of a parallelogram that the opposite sides in a parallelogram are equal. diagram: its a parallelogram, opposite sides and angles are congruent. Math III Unit 7-4 Theorems about Parallelograms Notes Name: _____ 1. a. Prove that one pair of opposite sides is both congruent and parallel. (10 Opposite sides are congruent (AB = DC). Prove that opposite sides of a parallelogram are congruent. Parallelogram Sides; Parallelogram Angles; How To Prove A Parallelogram; Parallelogram Definition. Prove that the diagonals bisect each other. View Untitled document (3).pdf from MATH 100 at Basha High School. The opposite sides are equal and parallel; the opposite angles are also equal. (Recall that a parallelogram is a four-sided figure in which both pairs of opposite sides are p… Opposite angels are congruent (D = B). Be sure to create and name the appropriate geometric figures. 3) In a parallelogram, opposite angles are equal. The diagonals of a parallelogram bisect each other. Try to move the vertices A, B, and D and observe how the figure changes. 2) If each pair of opposite sides of a quadrilateral is equal then it is a parallelogram. Yes; opposite sides are congruent. Once again, since we are trying to show line segments are equal, we will use congruent triangles.Let's draw triangles, where the line segments that we want to show are equal, represent corresponding sides. Yes; opposite angles are congruent. A parallelogram is a flat shape with four straight, connected sides so that opposite sides are congruent and parallel. Prove that the opposite sides of a parallelogram are congruent. d. Yes; two opposite sides are both parallel and congruent. 5) The diagonals of a parallelogram … Step-by … 4) If in a quadrilateral, each pair of opposite angles is equal then it is a parallelogram. Observe that at any time, the opposite sides … Each diagonal of a parallelogram separates it into two congruent … Prove opposite sides of parallelograms are congruent. Prove that both pairs of opposite sides are congruent. To prove a quadrilateral is a parallelogram, you must use one of these five ways. parallelogram, because opposite sides are congruent and adjacent sides are not perpendicular Which statement explains how you could use coordinate geometry to prove the diagonals of … C) The diagonals of the parallelogram bisect the angles. Be sure to create and name the appropriate geometric figures. B) The diagonals of the parallelogram are congruent. This means a parallelogram is a plane figure, a closed shape, and a quadrilateral. Consecutive angles are supplementary (A + D = 180°). Let’s play with the simulation given below to better understand a parallelogram and its properties. And congruent show that opposite sides of a parallelogram, you must use one of these five ways D. The diagonals of the parallelogram are congruent ( AB = DC ) geometric figures angles of the parallelogram congruent. Bisect the angles flat shape with four straight, connected sides so that opposite is. 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