January 31, 2014 7-3 Special Right Triangles 7-3 Special Right Triangles DAY 2 7-3 Special Right Triangles 30 - 60 - 90 Triangles: *Special right triangle *The length of the hypotenuse is twice the length of the shorter leg, and the length of the longer leg is 3 times the length of the shorter leg. 30 2n 60 n 3 n Example 4: Find QR and PR. P 4 3 cm 3 Q 30 R January 31, 2014 7-3 Special Right Triangles Example 5: Triangle WXY is a 30 - 60 - 90 triangle with right angle X and WX is the longer leg. Graph points X (-2,7) and Y (-7,7), and locate point W in Quadrant III. Find c and b, if a = 12. A 60˚ B C January 31, 2014 7-3 Special Right Triangles 7-3 Day 2: Pages 360 - 363 #'s 6 - 8, 14, 15, 18 - 21, 23, 26, 29, 32 - 34, 36 - 38, 41, 43 20 problems
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