Area of a triangle
Area of a Triangle
You will be using this simulation tool today to reach a number of conclusions about finding the area of a triangle. The questions below will ask you to manipulate some of the points on this app. You can do that by just clicking with your mouse and dragging.
You will also need to remember how to identify points on a grid. To find the point (3,4); I would start at (0,0) and move 3 spots to the right, then move 4 spots up.
Have fun
1) What is the area of the blue rectangle?
2) The red line is perpendicular to the x-axis. What does the word perpendicular mean?
If you're not sure, click on the link here http://www.mathopenref.com/perpendicular.html
3) Move point B to (3,6)
What is the height of the triangle?
What is the base of the triangle?
What is the area of the triangle? (Use the check box to show the area of the triangle)
How does the area of the triangle compare to the area of the rectangle?
4) Move point B to (10,6)
What is the height of the triangle?
What is the base of the triangle?
What is the area of the triangle?
How does the area of the triangle compare to the area of the triangle from question 3?
5) Move point B to (16,6)
What is the height of the triangle?
What is the base of the triangle?
What is the area of the triangle?
How does the area of the triangle compare to the area of the triangle from question 4?