Think Radian Worksheet Name: 1. What is the circumfrence? 9. The minute hand of a clock travels how many radians in 5 minutes? r 10. The measure of θ (in radians): 2. If you measured the circumfrence in terms of the circle’s own radius (r), how many are there going once around the circle (360◦ ) 3. How many radians are there in 360◦ ? θ θ 11. What is the measure of θ (in radians)? 4. How many radians are there in a straight angle (180◦ )? θ ? 5. How many radians in a right angle? 6. How many radians is each angle of an equalateral triangle? 12. What is the measure of θ (in radians)? 7. The minute hand of a clock travels how many radians in 15 minutes? θ ? - 8. The minute hand of a clock travels how many radians in 10 minutes? 13. What is the measure of θ (in radians)? 17. What is the measure of θ (in radians)? θ θ ? ? ^ ~ 14. What is the measure of θ (in radians)? 18. What is the measure of θ (in radians)? θ / x 5x ? =θ ? 19. π radians is how many degrees? 3 20. π radians is how many degrees? 6 21. π radians is how many degrees? 2 22. π radians is how many degrees? 4 23. 3π radians is how many degrees? 4 24. 2π radians is how many degrees? 3 15. What is the measure of θ (in radians)? kθ ? 16. What is the measure of θ (in radians)? θ Page 2 of 2