Area of a Triangle interactive (cf parallelogram)
Interact with the applet below for a few minutes. Be sure to move the BIG BLACK VERTICES of the triangle around each time before you move the slider.
Questions: 1) What transformation(s) took place in the applet above? 2) How does the area of the yellow triangle compare with the area of the pink triangle? 3) What BIG FIGURE was formed each time the slider reached its end? 4) Justify why your answer to (1) is correct. 5) The original triangle makes up what fractional part of BIGGER FIGURE FORMED? 6) Write a formula for the area of the original triangle based on your answer to (5).
How does the area of the yellow triangle compare with the area of the pink triangle?