Angles in Quadrilaterals
This page introduces the concept of angles in quadrilaterals, focusing on the fundamental principle that the suma miar kątów w czworokącie WYNOSI sumofanglesinaquadrilateralequals 360°.
Definition: A quadrilateral is a polygon with four sides and four angles.
The page explains that regardless of the shape of the quadrilateral square,rectangle,parallelogram,orirregular, the sum of its interior angles will always be 360°.
Vocabulary: Interior angles are the angles inside a polygon, formed by two adjacent sides.
Example: If three angles of a quadrilateral measure 90°, 75°, and 120°, the fourth angle can be calculated as: 360° - 90°+75°+120° = 75°.
This example demonstrates how to apply the 360° rule to find missing angles in quadrilaterals.