Because there are 180 degrees in a triangle and a 4 sided quadrilateral is made from two triangles so therefore 2*180 = 360 degrees
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It has 4 and they add up to 360 degrees
No. The interior angles of a TRIANGLE add up to 180 degrees.For a quadrilateral, there are four interior angles, and they add up to 360 degrees.
They sides if a quadrilateral can add up to anything but the angles have to equal 360
360. Any quadrilateral's angles add up to 360.
180 degrees because the 4 interior angles of a quadrilateral add up to 360 degrees and the 3 interior angles of a triangle add up to 180 degrees