Angles in Quadrilaterals Flashcards

The sum of the interior angles in any quadrilateral is 360°.

A quadrilateral is a polygon with four sides and four angles.

All angles in a rectangle are 90°.

All angles in a square are 90°, and all sides are equal.

Opposite angles in a parallelogram are equal, and adjacent angles are supplementary (add up to 180°).

Opposite angles in a rhombus are equal, and adjacent angles are supplementary (add up to 180°).

In an isosceles trapezium, the angles on each base are equal.

The sum of the exterior angles of any polygon, including quadrilaterals, is always 360°.

In a kite, one pair of opposite angles are equal.

The diagonals of a quadrilateral can bisect each other and form angles depending on the type of quadrilateral (e.g., diagonals of a rectangle are equal).