In a parallelogram consecutive angles are always supplementary. This means they equal 180.
Then it's consecutive angles are supplementary.
An equilateral quadrilateral which would include a square.
It is a square, a regular parallelogram with all right angles. The reason is that in a parallelogram, the adjacent angles are supplementary (equal 180 degrees).In any case, the opposite angle would be 90 degrees as well, leaving just 180 degrees for the other two identical opposite angles.
No, only in a square (regular parallelogram).The opposite angles are EQUAL in a parallelogram, and the adjacent angles are SUPPLEMENTARY(they equal 180 degrees).So if any angle in a parallelogram is a right angle, they all are. Otherwise, there are no right angles.The angles of a parallelogram will average 90 degrees, as there are 360 degrees in any quadrilateral, (360/4 - 90) and 180 degrees in two adjacent non-equal angles (180/2 = 90).
Adjacent angles in a parallelogram are supplementary.
No. A quadrilateral is a parallelogram when consecutiveangles are supplementary.
Supplementary.
supplementary
Yes
No, they are equal. Adjacent angles are supplementary in a prallelogram.
yes
Basa
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.
Not unless the parallelogram is a rectangle. In every parallelogram, consecutive angles are supplementary.
A parallelogram.
congruent