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Please turn in. Summer Math 1 Packet Parent Info Sheets *If you haven’t done so already. Warm-up . Find the circumference of a circle with a radius of 4 mm. Find the area of a rectangle with length 8 mm and width 2 mm. Find the area of a square with perimeter 20 mm. C = 2  r. = 25.1 mm.

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  1. Please turn in • Summer Math 1 Packet • Parent Info Sheets • *If you haven’t done so already.

  2. Warm-up • Find the circumference of a circle with a radius of 4 mm. • Find the area of a rectangle with length 8 mm and width 2 mm. • Find the area of a square with perimeter 20 mm. C = 2r = 25.1 mm 16 mm2 25 mm2

  3. Conditional Statements Also known as logic statements. Conditional, Inverse, Converse, & Contrapositive

  4. Conditional Statements • Called if-then statements • Have 2 parts • Hypothesis- The part afterif. • Conclusion- The part afterthen. * Do not include if and then in the hypothesis and conclusion.

  5. Hypothesis and Conclusion • Example: If you are not satisfied for any reason, then return everything within 14 days for a full refund.

  6. Try These. Identify the Hypothesis and the conclusion. • it is Saturday • Elise plays soccer • points are collinear • they lie on the same line • If it is Saturday, then Elise plays soccer. • Hypothesis- • Conclusion- • If points are collinear, then they lie on the same line. • Hypothesis- • Conclusion-

  7. Negation A statement can be altered by negation by writing the negative of the statement Symbol: ~

  8. Inverse When you negate the hypothesis and conclusion of a conditional statement, you form the inverse.

  9. Inverse • The inverse of a conditional statement is formed by negatingboth the hypothesis and the conclusion in the conditional (Add “NOT”) Conditional- If a figure is a triangle, then it has three angles. • Inverse- If a figure is not a triangle, then it does not have three angles.

  10. Converse • The converse of a conditional statement swaps the hypothesis and the conclusion. • Conditional- If a figure is a triangle, then it has three angles. • Converse- If a figure has three angles, then it is a triangle.

  11. * Converses are not always true. • Conditional- If a figure is a square, then it has four sides. • Converse- If a figure has four sides, then it is a square. * Not all four sided figures are squares. Rectangles also have four sides.

  12. Counterexample • Giving at least 1 example that disproves the statement. • Example: All prime numbers are odd.

  13. Contrapositive • The contrapositive of a conditional statement is formed by switching and negatingboth the hypothesis and the conclusion. (SWITCH the order and NEGATE) • Conditional- If a figure is a triangle, then it has three angles. • Contrapositive- If it does not have three angles, then a figure is not a triangle.

  14. Truth Value Decide whether the statement is true or false. If false, give a counterexample as to why it’s false. STMT: If you are a basketball player, then you are an athlete. Converse: Inverse: Contrapositive: False, not all athletes play basketball. Could play baseball, golf, tennis, swim, etc. False, even if you don’t play basketball, you can still be an athlete. Again, could play baseball, golf, tennis, swim, etc. True

  15. Classwork Music Lyrics WS

  16. Homework Page 207 #1 – 10

  17. Hand back the quiz

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