In this lesson we are going to talk about area of triangles, rhombi, and trapezoids. The formula for the area of a triangle is one half of base times height. Any of the three sides can be the base, and the height is always perpendicular to the base. This is the general formula and can be applied to any triangle. Remember that trapezoid has one pair of parallel sides. These parallel sides are called the bases, and they are included in the formula for the area. A rhombus is a quadrilateral with all sides equal. It has an interesting formula for the area, which is more different than the first two.
*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.
Area of Triangles Rhombi, & Trapezoids
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.