1. Quick Crisp Review
Give the exact value of sec210.

2. Activity
Draw and x and y axis through the center of your circle. Label the four quadrants
What is a radian?
With your yarn measure the radius.
1 radian is the angle that corresponds to this arc length.
How many radians is 180°?
How many degrees is one radian?
Lets Read Pages

3. You will be able to convert from radians to degrees and vice versa.
Example:
1) Convert 45° to radians
To convert from degrees to radians divide by 180 and multiply by π
To convert from radians to degrees multiply by 180 and divide by π.
2) Convert π/2 to degrees
Convert 1.7 radians to degrees
Convert (7π)/3 to degrees

4. Exit Slip
In your own words describe what a radian is and explain how we determined the measure of 1 radian (approx 57 degrees).
In a recent survey, 14 people found their mayor to be “very competent.” This number is exactly 20% of the peopled surveyed. How many people were survey?
A. 28 B. 35 C. 56 D. 70 E. 84