Quadrilateral
Definition 1 of 1
Pro Tip 1/3
Geometry Usage
Used in math to describe a four-sided polygon, fundamental in geometrical studies and problems. In geometry, we learned that the sum of angles in any quadrilateral is 360 degrees.
Pro Tip 2/3
Four Sides
All quadrilaterals have four straight sides; the length and angles of the sides can vary. Even if the sides of a quadrilateral are not equal, it still has four straight edges.
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Interior Angles
Quadrilaterals can have angles of different sizes, but all their interior angles add up to 360 degrees. The interior angles of this quadrilateral are obtuse and acute, but they add up correctly.