Warm Up:
1. What number is in the tenths place? 1.451
2. What number is in the hundredths place? 2.542
3. What number is in the thousandths place? 3.134
4. Round the number to the nearest whole number: 2.5
5. Round the number to the nearest whole number: 3.4
6. Round the number to the nearest tenth: 3.45
7. Round the number to the nearest tenth : 3.52
8. Round the number to the nearest hundredth: 3.548
9. Round the number to the nearest hundredth: 3.552
10. Round to the nearest tenth: 2.98
Feb 23­7:22 AM
Homework Questions?
Feb 23­7:28 AM
1
Feb 24­1:11 PM
Construct your assigned polygon. (It is important that you have STRAIGHT LINES!)
1. Determine the sum of the measures of the interior angles based on the number of sides.
2. Measure each of your interior angles to be sure it does add up to the correct number of degrees
(within 1­2 degrees)
3. Extend each of the sides and determine the measure of each exterior angle.
4. Determine the sum of the measures of the exterior angles.
5. Compare with a partner next to you and make a conjecture about the sum of the measures of the exterior angles of your polygon. Feb 23­7:28 AM
2
Quadrilateral
Pentagon
Hexagon
Feb 23­7:35 AM
How many degrees in a circle??
Feb 23­7:36 AM
3
360
360
Feb 23­7:37 AM
Feb 23­7:40 AM
4
Feb 23­7:41 AM
Feb 23­7:42 AM
5
Homework: none!
Feb 23­7:39 AM
6