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If opposite angles of a quadrilateral are supplementary is the quadrilateral a parallelogram?
No. A quadrilateral is a parallelogram when consecutiveangles are supplementary.
Are adjacent angles in a parallelogram are supplementary?
Adjacent angles in a parallelogram are supplementary.
True or False- If opposite angles of a quadrilateral are supplementary then the quadrilateral is a parallelogram?
false
If a parallelogram has one right angle then all of its angles must be right?
Yes. This is true because opposite angles are congruent and adjacent angles are supplementary.
Are complementary angles consecutive angles in a parallelogram?
The question does not really make sense. Once might ask, "Are consecutive angles in a parallelogram complementary?" in which case the answer is no. Complementary angles are angles which add up to 90 degrees. Consecutive angles are angles next to each other (or follow each other). In a parallelogram, consecutive angles are supplementary (add to 180 degrees). In a parallelogram, opposite angles are equal. You could have a parallelogram where two angles are 45 degree (and thus complementary) and then the other two angles would be 135 degrees.
If opposite angles of a quadrilateral are supplementary is the quadrilateral a parallelogram?
No. A quadrilateral is a parallelogram when consecutiveangles are supplementary.
Do opposite angles in a parallelogram add up to 180?
No. Opposite angles are equal. Adjacent angles are supplementary.
Parallelogram consecutive angles conjecture?
The Parallelogram Consecutive Angles Conjecture states that the consecutive angles in a parallelogram are supplementary. This means that the sum of two adjacent angles in a parallelogram is always 180 degrees. This property follows from the fact that opposite angles in a parallelogram are congruent.
How Dow you that the opposite angles of a parallelogram are equal?
First of all, you know the opposite sides of a parallelogram are equal because of the definition of a parallelogram. Therefore, two adjacent angles in the parallelogram are supplementary, because same-side interior angles in two parallels and a transversal are always supplementary. Therefore, opposite angles in a paralellogram are equal, because two angles both supplementary to a third angle are equal to each other.
Are adjacent angles in a parallelogram are supplementary?
Adjacent angles in a parallelogram are supplementary.
True or false If opposite angles of a quadrilateral are supplementary then the quadrilateral is a parallelogram?
True
Is this statement true or falseIf a quadrilateral is a parallelogram, then its opposite angles are always supplementary?
false
True or False- If opposite angles of a quadrilateral are supplementary then the quadrilateral is a parallelogram?
false
What properties apply in a parallelogram?
Consecutive angles are supplementary Diagonals bisect each other Opposite angles are congruent Opposite sides are parallel
If a quadrilateral is a parallelogram then its opposite angles are always supplementary?
False because it will have 2 equal opposite obtuse angles and 2 equal opposite acute angles with the 4 angles adding up to 360 degrees.
Are the opposite angles of any parallelograms are supplementary?
Yes, when they are both 90o and the parallelogram is usually referred to as a rectangle.
What are facts about parallelogram?
Opposite sides are congruent Opposite sides are parallel Opposite angles are equal Consecutive angles are supplementary Diagonals bisect each other Diagonals form 2 equal triangles
