1. The problem asks to fill in the blanks about properties of quadrilaterals and polygons, and then solve angle problems in a given quadrilateral ABCD. 2. For the fill-in-the-blanks: i. The diagonals of **a rhombus** and **a square** bisect each other at an angle of 90°. ii. The diagonals of **a kite** intersect each other at an angle of 90°. iii. A kite has **no** set of parallel sides. iv. A **trapezium (trapezoid)** has one set of parallel sides. 3. For the quadrilateral ABCD: Given: