This lesson is on rectangles. A rectangle is a quadrilateral with four right angles; we know that there are only four angles in a rectangle, so all four are right angles. Rectangles are a special type of parallelograms, so it has all the properties of a parallelogram. For example, opposite sides are parallel, and two pairs of opposite sides are congruent, as well as two pairs of opposite angles are congruent. We also know that diagonals bisect each other. Those are all of the properties of a parallelogram. However, rectangles have some more properties than the parallelograms. For example, the diagonals of a rectangle are congruent. You'll learn about some other properties of rectangles in this lesson.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.