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ilovebeans25423
27.09.2021 •
Mathematics
Logical Reasoning ("if-then" Statements) I. Determine if the following conditional is true or false, provide a counterexample if the statement is false. All points are in the Euclidean Plane. 1. If AM = MB, then M is the midpoint of AB . 2. If AB = 2PB, then P is the midpoint of AB . 3. If two angles are supplementary then they are equal. 4. If a figure is a square, then it is a quadrilateral. 5. If a quadrilateral has four right angles then it is a square. 6. If a quadrilateral is a parallelogram then it is a rectangle. 7. In a plane, if two lines are perpendicular to the same line, then they are parallel. 8. If a quadrilateral is a square, then it is a rectangle. II. Write the converse, inverse and contra-positive conditionals for the true problems above. State whether each conditional is true or false and provide a counterexample when the statement is false. III. Notice in the conditionals in part 2 the contrapositive is true. In general a contrapositive is true if the original if-then statement is true and is false if the original if-then statement is false. Choose one of the false if-then statements above and write the contrapositive. Give a counterexample to confirm the contrapositive is false.
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