Final answer:
The quadrilateral obtained by joining the points (0,0), (2,0), (2,2), and (0,2) in order is a rectangle. Its area is 4 square units.
Step-by-step explanation:
The quadrilateral obtained by joining the points (0,0), (2,0), (2,2), and (0,2) in order is a rectangle. A rectangle is a type of quadrilateral with four right angles. To find its area, we can use the formula A = length × width. In this case, the length is the distance between (0,0) and (0,2), which is 2 units, and the width is the distance between (0,0) and (2,0), which is also 2 units. Therefore, the area of the rectangle is 2 units times 2 units, which equals 4 square units.