The Area of a Triangle as Half a Rectangle

​
area [ABC]
≈
0.600
1
2
area [BCDE]
≈
0.600
altitude
≈
1.200
base
≈
1
The area of a triangle is equal to half the area of a rectangle with the same base and altitude.
Drag the orange points to reshape the figure.

External Links

Triangle (Wolfram MathWorld)

Permanent Citation

Jay Warendorff
​
​"The Area of a Triangle as Half a Rectangle"​
​http://demonstrations.wolfram.com/TheAreaOfATriangleAsHalfARectangle/​
​Wolfram Demonstrations Project​
​Published: March 7, 2011