8 3 Solving Right Triangles Objective Use trigonometric
8 -3 Solving Right Triangles Objective Use trigonometric ratios to find angle measures in right triangles and to solve real-world problems. Holt Mc. Dougal Geometry
8 -3 Solving Right Triangles • Read lesson and do examples 1 & 2 from your core book on pages 339 - 340 Holt Mc. Dougal Geometry
8 -3 Solving Right Triangles Example 3: Solving Right Triangles Find the unknown measures. Round lengths to the nearest hundredth and angle measures to the nearest degree. Holt Mc. Dougal Geometry
8 -3 Solving Right Triangles Example 4: Solving Right Triangles Find the unknown measures. Round lengths to the nearest hundredth and angle measures to the nearest degree. Holt Mc. Dougal Geometry
8 -3 Solving Right Triangles Holt Mc. Dougal Geometry
8 -3 Solving Right Triangles Example 5: Percent Grade San Francisco, California, is famous for its steep streets. The steepness of a road is often expressed as a percent grade. Filbert Street, the steepest street in San Francisco, has a 31. 5% grade. This means the road rises 31. 5 ft over a horizontal distance of 100 ft. What is the angle of elevation of the street? Holt Mc. Dougal Geometry
8 -3 Solving Right Triangles Example 6: Travel Baldwin St. in Dunedin, New Zealand, is the steepest street in the world. It has a grade of 38%. To the nearest degree, what angle does Baldwin St. make with a horizontal line? Holt Mc. Dougal Geometry
8 -3 Solving Right Triangles 8 -3 Assignment from the Core Book • Pg 341 #16, 17 • Pg 342 ALL • Due Tuesday for periods 2 & 4 • Due Thursday for periods 1, 3, 5, 7 Holt Mc. Dougal Geometry
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