Trapezium Area Calculator

Calculate Area & Perimeter

Calculate the area and perimeter of a trapezium (trapezoid) using the parallel sides and height.

Trapezium Dimensions

Formula

Area = (a + b) × h / 2

where: a, b = parallel sides, h = height

About Trapezium

A trapezium (trapezoid in US) is a quadrilateral with one pair of parallel sides. The parallel sides are called bases.

Properties

  • One pair of parallel sides
  • Sum of angles = 360°
  • Height is perpendicular to bases
  • Can be isosceles or scalene

Types of Trapezium

Isosceles Trapezium

Non-parallel sides are equal in length. Base angles are equal.

Scalene Trapezium

All sides have different lengths. No equal angles.

Right Trapezium

Has two adjacent right angles (90°).

Applications

Trapeziums are commonly found in:

  • Architecture and building design
  • Bridge construction (trapezoidal supports)
  • Furniture design (tables, shelves)
  • Land surveying and area calculation
  • Engineering and structural design

Example Calculations

Base 1Base 2HeightArea
106432
85319.5
128550
1510675