AND In any triangle, the longest side is opposite the largest angle; the shortest side is opposite the largest angle. (All of this was figured out by in-class investigation.)
We also learned that the measure of an exterior angle of a triangle (sketch on p 215) is equal to the sum of the measures of its two remote interior angles. We justified this deductively, making C-23 into a theorem. C-23 was written up in class. In most classes we did not write up 21 & 22 because of the wording. Those will be finished at the beginning of the next class.
We went over HW #1 carefully after taking a grade for 4 pts. Questions were answered. The key to success: look at the sketch and say out loud what you are seeing. And what you know that will help you find missing information.
HW #2 is p 216:1-16. We practiced some to make sure we understood. Due Friday-Monday.
We did some review of 4.1-2 in class from a worksheet which is attached below. We will do the back side next time for a warm-up.
Quiz Friday-Monday, Oct 27-30, over 4.1-3. C-17-23. We will practice in class. The quiz is not until the end of class.
Test retakes are available for grades below 75% on the Construction Unit. Must be done by next Thursday, Nov 2. Come by during advisory to view and discuss your test. Remember that the maximum grade on a re-take is 80%.