Trapezoid Area Calculator
Calculate trapezoid area and perimeter from parallel sides and height. Also computes leg lengths and diagonals.
Enter Dimensions
Side lengths are optional (used for perimeter calculation)
How to Use
Enter Values

Enter top base, bottom base, and height
Calculate

Area is calculated automatically
View Result

Check area and perimeter
Features
Instant Calculation
Show area instantly upon input
Diagram
Display trapezoid diagram based on input
Steps
Show (top+bottom)×height÷2 calculation steps
FAQ
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