When you add all four sides of a quadrilateral(all parallelograms are quadrilateral), It must equal 360 degrees. So what you do is you add up the three angles that are given, them subtract that sum from 360.
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If you mean if one of the angles is a right angle, then yes, because a rectangle is the only option left if it is to remain a parallelogram.
The adjacent angles of a parallelogram are supplementary. This means that angle A + angle B = 180 deg.Since angle B = 2*angle A, then angle A + 2*angle A = 180 deg ie 3*angle A = 180 deg so that angle A = 60 deg.
The answer is 360 degrees.
A rhombus, or a square if there is a 90o angle.
No, all the angles inside the parallelogram must add up to 360*. There are 4 corners, and if they are all the same then: 4n = 360 n = 90 Which means that the angle (n) will be 90*. If you draw this, it will be a square, which is not a parallelogram the parallelogram also has 6 angels jfhdgcgfhgjhghc i eat dicks