A parallelogram can have both ...?

Question:a. Acute and obtuse angles
b. Perpendicular lines and parallel angles
c. acute right angles
d. perpendicular lines and acute angles

a) Is correct.
b) No such thing as parallel angles.
c) a right angle can't be acute .(an acute angle is less than 90 degrees.)
d) Impossible in a parallelogram.
Just look at it. If you know what those things even are, you'll know the answer.

And if you don't know what those are, then I guess you should pay attention in class.
a. Acute and obtuse angles
the answer is A

acute right angles ?? that's stupid
a. Acute and obtuse angles

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