Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Name 2-2 Class Date Practice Form G Conditional Statements Identify the hypothesis and conclusion of each conditional. 1. If a number is divisible by 2, then the number is even. 2. If the sidewalks are wet, then it has been raining. 3. The dog will bark if a stranger walks by the house. 4. If a triangle has three congruent angles, then the triangle is equilateral. Write each sentence as a conditional. 5. A regular pentagon has exactly five congruent sides. 6. All uranium is radioactive. 7. Two complementary angles form a right angle. 8. A catfish is a fish that has no scales. Write a conditional statement that each Venn diagram illustrates. 9. 10. Determine if the conditional is true or false. If it is false, find a counterexample. 11. If the figure has four congruent angles, then the figure is a square. 12. If an animal barks, then it is a seal. Pearson Texas Geometry Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved. Name Class 2-2 Date Practice (Continued) Form G Write the converse, inverse, and contrapositive of the given conditional statement. Determine the truth value of all three statements. If a statement is false, give a counterexample. 13. Conditional Statement: If two angles are complementary, then their measures sum to 90. Hint: (Inverse: Put “not” in both the hypothesis and conclusion.) Inverse: TRUE FALSE Counterexample: Hint: (Converse: Exchange the hypothesis and conclusion.) Converse: TRUE Hint: (Contrapositive: Put “not” in both the hypothesis and conclusion AND exchange the hypothesis and conclusion.) Contrapositive: TRUE 14. Conditional Inverse: FALSE Counterexample: FALSE Counterexample: Statement: If the temperature outside is below freezing, then ice can form on the sidewalks. TRUE FALSE Counterexample: Converse: TRUE FALSE Counterexample: Contrapositive: TRUE FALSE Counterexample: 15. Conditional Inverse: Statement: If a figure is a rectangle, then it has exactly four sides. TRUE FALSE Counterexample: Converse: TRUE FALSE Counterexample: Contrapositive: TRUE FALSE Counterexample: Draw a Venn diagram to illustrate each statement. 16. If a figure is a square, then it is a rectangle. 17. If the game is rugby, then the game is a team sport. 18*. Open-Ended Write a conditional statement that is false and has a true converse. Then write the converse, inverse, and contrapositive. Determine the truth values for each statement. 19. Multiple Representations Use the definitions of p, q, and r to write each conditional statement below in symbolic form. p: The weather is rainy. q: The sky is cloudy. r: The ground is wet. a. If the weather is not rainy, then the sky is not cloudy. b. If the ground is wet, then the weather is rainy. c. If the sky is not cloudy, then the ground is wet. Review Questions for Quiz Find a pattern for each sequence. Use inductive reasoning to show the next two terms. 20. 3, 5, 9, 17, … 21. 1, 4, 6, 24, 26, … Use the sequence and inductive reasoning to make a conjecture. 22. How many sides does the fifth figure of Sequence A have? 23. How many sides does the tenth figure of Sequence A have? Use inductive reasoning to make a prediction for each scenario. 24. A farmer keeps track of the water his livestock uses each month. a. Predict the amount of water used in August. b. Is it reasonable to use the graph to predict water consumption for October? Explain.