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7.1 7.2 notes

1. 1. 7.1­7.2 Pythagorean Theorem November 06, 2012 B Do problems on Worksheet e 5.3 #1, 8 l l 5.4 #6, 8, 11 w 1. 19 o 8. x = 3 6. 6 r 8. (­3, ­1) k 11. no, no, no Nov 15­1:26 PMWkst all except 7­9 on 7.2. Extra Credit: #21 1
2. 2. 7.1­7.2 Pythagorean Theorem November 06, 2012 7.1 Pythagorean Theorem a2 + b 2 = c 2 a c b Find the length of the hypotenuse of the right triangle. 8 x 6 Nov 15­1:32 PMWkst all except 7­9 on 7.2. Extra Credit: #21 2
3. 3. 7.1­7.2 Pythagorean Theorem November 06, 2012 Find the area of the isosceles triangle with side lengths 10 meters, 13 meters, and 13 meters. The area of the triangle is 60 square meters. Nov 15­1:43 PMWkst all except 7­9 on 7.2. Extra Credit: #21 3
4. 4. 7.1­7.2 Pythagorean Theorem November 06, 2012 Pythagorean Triples Most Common 3, 4, 5 5, 12, 13 8, 15, 17 7, 24, 25 6, 8, 10 10, 24, 26 16, 30, 34 14, 48, 50 9, 12, 15 15, 36, 39 24, 45, 51 21, 72, 75 30, 40, 50 20, 120, 130 80, 150, 170 70, 240, 250 Found on page 435 5 13 x Nov 15­3:36 PMWkst all except 7­9 on 7.2. Extra Credit: #21 4
5. 5. 7.1­7.2 Pythagorean Theorem November 06, 2012 7.2 Converse of the Pythagorean Theorem If c 2 = a 2 + b 2 , then is a right . c a b Tell whether the given triangle is a right triangle. Nov 15­1:46 PMWkst all except 7­9 on 7.2. Extra Credit: #21 5
6. 6. 7.1­7.2 Pythagorean Theorem November 06, 2012 HW Worksheet all except 7, 8, 9 on 7.2 #21 is extra credit Nov 15­1:53 PMWkst all except 7­9 on 7.2. Extra Credit: #21 6
7. 7. 7.1­7.2 Pythagorean Theorem November 06, 2012 Nov 16­7:22 AMWkst all except 7­9 on 7.2. Extra Credit: #21 7
8. 8. 7.1­7.2 Pythagorean Theorem November 06, 2012 Nov 16­7:28 AMWkst all except 7­9 on 7.2. Extra Credit: #21 8