The area of the trapezoid is calculated using the formula from the upper base and lower base and height.
Enter the upper base a, lower base b, the height h and click "calculate the area of trapezoid", the area of the trapezoid is calculated from the upper base, the lower base, and the height.
![Area of trapezoid](/img/area_en/trapezoid.png)
![Formula of area of trapezoid](/img/area_en/trapezoid1.jpg)
The area of the trapezoid whose above bottom a is 2, lower base b is 3, and height h is 4
Area S: 10