The document discusses the definitions of a trapezium and parallelogram. There are two definitions of a trapezium - exclusive, which requires exactly one pair of opposite sides to be parallel, and inclusive, which only requires one pair of opposite sides to be parallel. Under the exclusive definition, a parallelogram is not a trapezium, but under the inclusive definition, a parallelogram is considered a trapezium. The author aims to inform students of these definitions to clarify the real facts.

1. TRAPEZIUM vs PARALLELOGRAM BY TUTUL KAIRI

2. DEFINITION OF A TRAPEZIUM TWO TYPES OF DEFINITIONS (i) EXCLUSIVE (ii) INCLUSIVE

3. EXCLUSIVE DEFINITION A QUADRILATERAL WITH EXACTLY ONE PAIR OF OPPOSITE SIDES ARPARALLEL

4. INCLUSIVE DEFINITION A QUADRILATERAL WITH ONE PAIR OF OPPOSITE SIDES ARE PARALLEL

5. UNDER EXCLUSIVE DEFINITION A PARALLELOGRAM IS NOT A TRAPEZIUM

6. IN “PRINCIPIA OF MATHEMATICA” THE DEFINITION IS EXCLUSIVE

7. INCLUSIVE DEFINITION UNDER THIS DEFINITION “ A PARALLELOGRM IS A TRAPEZIUM”

8. TO INFORM THE REAL FACTS TO THE STUDENTS

9. MANY DEFINITIONS OF . EUCLIDEAN GEOMETRY ARE MADE INCLUSIVE Thanks- TUTUL KAIRI MATHEMATICS TEACHER