We continue our discussion on how to find the area of a triangle. In the previous post, we have learned where the formula for the area of a triangle came from. We have studied that a triangle with area , base and height is
We continue our discussion with the third example in this series.
What is the base of a height 7 and area 8.75 square centimeters?
Multiplying both sides by 2, we have » Read more
We have learned about the areas of squares, rectangles, circle, parallelogram, and trapezoid. There is one important shape we haven’t discuss: the area of a triangle.
The area of a triangle is half the product of its base and height. But did you know where did the formula come from? Let us discuss it in this post.
The area of a triangle is related to the area of other shapes, but we are going to relate it to the area of a parallelogram.
Consider the triangle above with base and height . If we are going to create another triangle congruent to it (congruent means the same size and shape), then we can form a quadrilateral by coinciding their two corresponding sides. What is interesting is that every time we do this, we create a parallelogram. » Read more