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Why does a parallelogram equal to 180?
A parallelogram does not equal 180. A parallelogram is a plane figure bounded by two pairs of parallel lines. What does equal 180 is the sum of the measures of any pair of adjacent angles. The two adjacent angles have a side in common. If that line is considered as the intercept of the pair of parallel lines, it is easy to show that the angles should add to 180 degrees.
Is a rhombus a a parallelogram with all equal angles?
No. A rhombus is a parallelogram with all equal sides. A parallelogram with all equal angles is a rectangle (which might also be a rhombus and a square).
Does a parallelogram have a rotation symmetry?
Yes, 180 degrees. In the degenerate case that the parallelogram is a square, then 90 degrees.
How do you find the adjacent angle sum of parallelogram?
You do not need to find. If it is a parallelogram, it must be 180 degrees.
What angles does a parallogram have?
A parallelogram is a four-sided figure with opposite sides of equal length and angles not equal to 90 degrees (otherwise it would be a rectangle). Diagonally opposite angles will be equal, and adjacent angles will add up to 180 degrees.
