Chapter 20. Mensuration I (Area of a Trapezium and a Polygon) RD Sharma Solutions Class 8 Maths Chapter 20. Mensuration I (Area of a Trapezium and a Polygon) Lesson Content 0% Complete 0/3 Steps Class 8 Mensuration I (Area of a Trapezium and a Polygon) 20.1 Class 8 Mensuration I (Area of a Trapezium and a Polygon) 20.2 Class 8 Mensuration I (Area of a Trapezium and a Polygon) 20.3 Previous Topic Back to Course Next Topic