1. A A person is standing at point A cheering on his favorite team. Round to nearest tenth. a)Find the height CD of the bleachers. b)Find the height of the fan at Point A from the ground. c)Find the distance AB that the fan is from the field at B. B D C 90 feet. 30° 52.0 feet 39.0 feet 77.9 feet

2. Math II UNIT QUESTION: What patterns can I find in right triangles? Standard: MM2G1, MM2G2 Today’s Question: How do we solve 45°-45°-90° right triangles? Standard: MM2G1.b

3. Learning Task – Part 2

4. You will be able to find the lengths of sides of special right triangles 30-60-90 And 45-45-90

6. Leg:Leg:Hypotenuse

7. In a 45-45-90 triangle… We will use a reference triangle to set up a proportion then solve.

8. 45-45-90 Right Triangle 1 1 This is our reference triangle for the 45-45-90.

9. 45-45-90 Right Triangle x x

10. 3 3 x EX: 1 Solve for x a√2 a a

11. 5 5 x EX: 2 Solve for x a√2 a a

12. x 3 45 EX: 3 Solve for x a√2 a a

13. Extension Problem The diagonal of a square is 12 inches. Find the area. Round to the nearest tenth. Area = 72 in. 2 12 in.

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