# Area of a Triangle (Discovery)

- Author:
- Tim Brzezinski

- Topic:
- Area

Interact with the applet below for a few minutes.

*Be sure to move the***VERTICES***of the triangle around each time*Answer the questions that appear below the applet.**before you move the slider.**## 1

What LARGER FIGURE was formed when the slider reached its end? How do we know this to be true?

## 2.

How does the area of the original triangle compare with the area of this LARGER FIGURE?

## 3.

How do we find the area of this LARGER FIGURE? What is the formula we use to find it?

## 4.

Given your responses to (2) & (3), write a formula that gives the area of JUST ONE of these congruent triangles.