What do the interior angles in a quadrilateral add up to?

180°

720°

360°

540°

Which of the following quadrilaterals have all their angles equal to 90°?

Which of the following have an angle sum of 360 degrees? Select all correct options.

Which of the following quadrilaterals have opposite angles equal?

Deduce the angle properties of intersecting and parallel lines and the angle properties of polygons and apply these properties