A Trapezium is a quadrilateral with one pair of parallel sides. In cases, it is also defined as a plane figure with four sides, no of two which are parallel.
Table of Contents:
Area of Trapezium = ½×(a + b)×h
a, b = sides, h = height
Perimeter of Trapezium (trapezoid calc: find p) = a + b + c + d
a, b, c, d = sides
A Trapezium is a four-sided polygon with two non-adjacent parallel sides or one set of parallel sides.
Examples: how to work out the area of a trapezium?
Case 1: Find the area of a trapezium using the sides length as 4,5 and the height 2.
Step 1: Find the area.
Area = ½ * (a+ b) * h = ½ * (4 + 5) * 2 = ½ * 9 * 2 = 9.
Case 2: Find the perimeter of a trapezium using the sides length as 4,5,6,7
Step 1: Find the perimeter.
Perimeter = a + b + c + d = 4+5+6+7 = 22.
To find the side following calculation will be used (trapezoid calc: find c):
c =P - a - b - d
trapezoid calc: find h, a=n/a, b=n/a, a=n/a
For base a
trapezoid calc: find a, b=n/a, h=n/a, a=n/a
For base b
find b, a=n/a, h=n/a, a=n/a
Where: n/a is marked as NULL