Day 20: A Right Trapezium Indeed

Geometry Level 1

In the trapezium ABCDABCD where ABAB is parallel to CDCD, ABAB is 3 units longer than CDCD, BC=5BC = 5, and ADAD is perpendicular to ABAB.

Given that the area of the trapezium is 34, find the perimeter of the trapezium.


This problem is part of the Advent Calendar 2015.
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