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.

### The area of the trapezoid whose above bottom a is 2, lower base b is 3, and height h is 4

Area S: 10