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Question

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anonymous · Answer

Is this the entire question?

anonymous · Answer

The sum of any interior triangle's angles add up to 180 degrees, and if you add up a square's or rectangle's angles, you get 360 degrees, so the measure of all the interior angles in a regular quadrangle is 360 degrees

anonymous · Answer

Ummm... @DrDragon13, are you sure, because in my lessons it says something else!

anonymous · Answer

I would bet my life on it man, I'm almost done with Calc III

anonymous · Answer

@DrDragon13, I only say that because my lessons says that the interior angles is 90 degrees, which isn't making much sense.
What are the interior angles again?

anonymous · Answer

well I guess if each interior angle (the angle inside the shape)|dw:1352234601396:dw|
is the same, then they would all be 90 degrees (360/4) because there are four angles in a quadrilateral.