Objective: I can find the apothem and use it to find the area of a regular polygon.
Reflect: What is the apothem, why do you need it and how do you find it?
Vocabulary: Adjacent, Altitude, Angles, Apothem, Center, Central Angle, Congruent, Consecutive, Endpoints, Height, Isosceles, Midpoint, Radius, Regular Polygon, Sides, Vertex
Homework Due Day 2: Notes Regular Polygons & Apothem (9-2) (Pages 10-12 in packet). Videos are below.
Homework Due Day 3 (3/21 & 3/24): Perimeter and Area Regular Polygons #1-9 Page 16 in your packet.
Homework Due Day 4 (3/25 & 3/26): Notes Dimensional Change (9-5)
Activities: Warm Up, Review Homework and then
Apothems, Apothem Practice, Perimeter and Area – Regular Polygons, 9.2 Worksheet
The parts of a Regular Polygon (Page 1 of Notes)
Steps to find the Apothem (Page 2 of Notes). The original version of this video has received over 3,500 views. If you want to read the comments on the first video, you can click here: http://youtu.be/UMba_aOEoIo
Using the apothem to find area (Page 3 of notes)