A Trigonometric Path into the Land of Regular Pentagons - National ...

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Name _________________________________ Date _________________ Period ___________ Extension Worksheet: Finding the Missing Angle You can find the degree measure of a missing angle of a right triangle with the given ratio by using the graphing calculator. Example: Sin ____ ≈ .5878 Directions: Step 1: Make sure mode is set to Degrees. Step 2: Push the 2 nd button. Step 3: Push the sin button. sin -1 (should appear on the screen.) Step 4: Type .5878 and close parenthesis. Step 5: Push Enter. The answer is 36.00104446. Then round to the nearest degree. The final answer is 36º. Find the degree using your calculator. Round to the nearest degree. 1. Sin ________ ≈ .9998 2. Cos ________ ≈ .9998 3. Tan ________ ≈ .9657 4. Tan ________ ≈ 2.1445 5. Cos ________ ≈ .0698 6. Sin _________ ≈ .5150 7. Tan ________ ≈ 57.290 8. Cos ________ ≈ .7071 Find the degree using your calculator. Round to the nearest degree. 9. 17 25 xº
10. 24 mº 7 11. yº 30 11 12. 1 tº 10
Page 1 and 2: A Trigonometric Path into the Land
Page 3 and 4: Embedded Assessment • The teacher
Page 6 and 7: Name ______________________________
Page 8 and 9: 14. Use the above steps to complete
Page 10 and 11: 10. Change the measure of your poin
Page 12 and 13: Name ______________________________
Page 14 and 15: Worksheet #2 - Extra Practice ANSWE
Page 18 and 19: Extension Worksheet: Finding the Mi
Page 20 and 21: Name ______________________________
Page 22 and 23: Example 2: Find x 16 x 81 ◦ Steps
Page 24 and 25: Name ______________________________
Page 26 and 27: Example 2: Find x 16 x 81 ◦ Steps
Page 28 and 29: Name ______________________________
Page 30 and 31: Worksheet #4: Practice Finding Miss
Page 32 and 33: Name ______________________________
Page 34 and 35: Worksheet #5: Trig Word Problems AN
Page 36 and 37: Worksheet #6 - Finding the Area of
Page 38 and 39: Worksheet #6 - Finding the Area of
Page 40 and 41: Worksheet #7 - Pentagon Practice Us
Page 42 and 43: 4. A regular pentagonal garden with
Page 44 and 45: Find the missing lengths. 9. 10. x
Page 46 and 47: Quiz - Trig Functions and Area of R
Page 48 and 49: Extended Constructed Response Direc

A Trigonometric Path into the Land of Regular Pentagons - National ...

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