are the adjacent angles of a parallelogram equal?
147749
Two pairs of opposite angles are equal in measure. The diagonals bisect each other. One pair of opposite sides is parallel and equal in length. Adjacent angles are supplementary.
27191
A parallelogram has opposite sides parallel and equal in length. Also opposite angles are equal (angles "A" are the same, and angles "B" are the same). NOTE: Squares, Rectangles and Rhombuses are all Parallelograms!
267927
The diagonals of a parallelogram are not of equal length. They bisect with each other at the point of intersection with equal sides across the point of intersection.
994573
Theorem 47: If both pairs of opposite angles of a quadrilateral are equal, then it is a parallelogram. ... Theorem 49: If one pair of opposite sides of a quadrilateral is both equal and parallel, then it is a parallelogram. Theorem 50: If the diagonals of a quadrilateral bisect each other, then it is a parallelogram.
881795
The opposite sides of a parallelogram are equal (and conversely: if the opposite sides of a quadrilateral are equal, it is a parallelogram). The opposite angles of a parallelogram are equal (and conversely: if the opposite angles of a quadrilateral are equal, it is a parallelogram).
1080908
The adjacent sides of a parallelogram are represented by the vectors →a=ˆi+ˆj-ˆk and →b=-2ˆi+ˆj+2ˆk. Find unit vectors parallel to the diagonals of the parallelogram.
1195881
A parallelogram has two parallel pairs of opposite sides. A rectangle has two pairs of opposite sides parallel, and four right angles. ... Kites have two pairs of adjacent sides that are equal.
59127
On a basic parallelogram, opposite sides are not congruent. On a basic parallelogram, consecutive angles are supplementary. On a basic parallelogram, consecutive angles are congruent. On a basic parallelogram, diagonals bisect each other.
9095
All the properties of a parallelogram apply (the ones that matter here are parallel sides, opposite angles are congruent, and consecutive angles are supplementary). All sides are congruent by definition. The diagonals bisect the angles. The diagonals are perpendicular bisectors of each other.
68102
Prove that any two adjacent angles of a parallelogram are supplementary. Then, AD ∥ BC and AB is a transversal. ... Thus, the sum of any two adjacent angles of a parallelogram is 180°. Hence, any two adjacent angles of a parallelogram are supplementary.
312839
All sides are congruent. Opposite angles are congruent. The diagonals are perpendicular to and bisect each other. Adjacent angles are supplementary (For eg., ∠A + ∠B = 180°).
800113
Identify each parallelogram as a rectangle, rhombus, or a square. Answer: ... In Parallelogram B, we see that there are four right angles and that the pairs of opposite sides are congruent. However, consecutive sides are not congruent, so we can eliminate rhombuses and squares from our options.
950286
All the properties of a parallelogram apply (the ones that matter here are parallel sides, opposite angles are congruent, and consecutive angles are supplementary). All sides are congruent by definition. The diagonals bisect the angles.
566273
The Parallelogram A parallelogram has opposite sides parallel and equal in length. Also opposite angles are equal (angles "A" are the same, and angles "B" are the same). NOTE: Squares, Rectangles and Rhombuses are all Parallelograms!
873309
Theorem 1. In a parallelogram, opposite sides are equal. Conversely, if the opposite sides in a quadrilateral are equal, then it is a parallelogram.
1360325
Opposite Angles Are Congruent The angles opposite of each other will have the same measurement. It's common for a parallelogram to have two acute angles and two obtuse angles.
1452986
If the opposite angles of a quadrilateral are equal, then the quadrilateral is a parallelogram. ... This test is the converse of the property that the opposite sides of a parallelogram are equal. Theorem. If the opposite sides of a (convex) quadrilateral are equal, then the quadrilateral is a parallelogram.