We are almost finished with the unit! Today we started an investigation (a handout) to discover that angle bisectors of the angles of a triangle meet at a point called the incenter; perpendicular bisectors of sides of triangles intersect at a point called the circumcenter; altitudes intersect at a point call the orthocenter. The circumcenter is the center of a circle that includes all 3 vertices of the triangle. You will be writing up definitions for concurrent lines and circumscribed circle with sketches from the textbook (write def. in GT section). Then you will write up C-9-11 with the sketches from the page. Be sure to label the points of intersection correctly.
Mon-Tues we will finish the unit: construct circumscribed and inscribed circles, median investigation, understand why the circles work, add some questions to HW. 0B will get their unit review.
Today we learned and practice 2 different methods for constructing a square. We did a warm-up called "Speed Constructions" attached below. We shared HW answers and questions over HW and the warm-up. Then we worked on the investigation. And then we took the quiz over 3.1-4 - 22 pts.
The test is Thurs, oct 17 for 0B and Fri, Oct 18 for 1-3.
The homework is listed at the bottom of the investigation. The investigation is attached below as well.
If you want to get ahead this weekend, the add-on questions before the review will be:
p 163: 13-14, p 188:5-6.
Mon-Tues we will finish the unit: construct circumscribed and inscribed circles, median investigation, understand why the circles work, add some questions to HW. 0B will get their unit review.
Today we learned and practice 2 different methods for constructing a square. We did a warm-up called "Speed Constructions" attached below. We shared HW answers and questions over HW and the warm-up. Then we worked on the investigation. And then we took the quiz over 3.1-4 - 22 pts.
The test is Thurs, oct 17 for 0B and Fri, Oct 18 for 1-3.
The homework is listed at the bottom of the investigation. The investigation is attached below as well.
If you want to get ahead this weekend, the add-on questions before the review will be:
p 163: 13-14, p 188:5-6.
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pre-ap_geometry_2017_speed_constructions_warm-up.pdf |