9.3 pythagorean theorem day 3
- 1. Let a and b represent the lengths of the legs of a right triangle, and let c represent the length of the hypotenuse. Find the unknown length. Lesson 9.4 , For use with pages 487-491 ANSWER 6 ANSWER 50 2. a = 14, b = 48 , c = ? 1. a = ? , b = 8 , c = 10
- 2. Essential Questions What is the difference between an irrational number and a rational number? How are real numbers and the Pythagorean Theorem used in everyday life? What types of real-life situations could the Pythagorean Theorem or square roots apply to? Why?
- 3. Darth Vader Lesson on Pythagorean Theorem Link http://www.teachertube.com/viewVideo.php?video_id=46263&title=Darth_Vader_Explains_the_Pythagorean_Theorem
- 4. Review Do these lengths make a right triangle? 25, 15, 20 16, 18, 20 9, 41, 36
- 5. Review Formulas a 2 + b 2 = c 2 c 2 - a 2 = b 2 c 2 - b 2 = a 2
- 6. Review What two consecutive whole numbers does the square root fall between?
- 7. Rational and Irrational numbers What is a rational number? What is an irrational number?
- 8. Rational Number Fractions Ratios Whole numbers Integers Terminating decimals (stop) Repeating decimals Square root of a perfect square Irrational Numbers Non-terminating decimal Non-repeating decimal Square root of a number that is not a perfect square
- 9. Homework Review Worksheet Pythagorean Theorem - Round to the nearest tenth! Test tomorrow!!! All late work due tomorrow!!!!
- 10. Worksheet 9.3 65 150 117 28 13 ≈ 38.5 35 5 8 65 48 6.4 85 15. ≈ 43.9 16. ≈ 7.4 ft 17. ≈ 657 miles or 656.9 miles 48 Points