What is the total sum of all angles in a quadrilateral?

The total sum of all angles in a quadrilateral is 360 degrees. This can be understood through geometric principles regarding polygons. A quadrilateral is a four-sided polygon, and there is a formula for determining the sum of interior angles of any polygon, which is (n - 2) × 180 degrees, where n represents the number of sides.

For a quadrilateral, n is 4. Plugging in the values gives us (4 - 2) × 180 degrees, which simplifies to 2 × 180 degrees, resulting in 360 degrees. This means that regardless of the shape of the quadrilateral, whether it's a square, rectangle, trapezoid, or any irregular four-sided figure, the sum of the interior angles will always equal 360 degrees. This foundational property of quadrilaterals is crucial in various mathematical contexts, including geometry, design, and architecture, where understanding angles is essential.