Ted Schalow was out ill on Monday and Tuesday this week, so I am late in getting information posted this week.
Both B1 and B2 Geometry are doing Lessons 1.5, 1.6, and 1.7 this week. Lesson 1.7 is the last lesson of Chapter 1, so next week on Friday Oct 7 will be the Chapter 1 Review and Test. Students are advised to have their assignments up to date before then and also to review the Chapter 1 Summary.
Lesson 1.5
Lesson: 1.5
Page: 35
Title: Describe Angle Pair Relationships
EQ: How do you identify complementary and supplementary angles?
Skill Learned: You will learn how to answer this question by finding the sum of the measures of two given angles.
Assignment Review
Review Vocabulary and Postulates/Theorems
- Protractor Postulate
- Angle Addition Postulate
- Acute, Obtuse, Right, and Straight Angles
New Vocabulary and Postulates/Theorems
- Complementary Angles – Two angles are complementary if the sum of their measures is 900
- Supplementary Angles – Two angles are supplementary if the sum of their measures is 1800
- Adjacent Angles – Two angles are said to be adjacent if they share a common vertex and side but have no common interior points.
Complementary and Supplementary angles can be either adjacent or non-adjacent.
- Linear Pair – Two adjacent angles are a linear pair if their non-common sides are opposite rays. The angles in a linear pair are supplementary.
- Vertical Angles – Two angles are vertical angles if their sides form two pairs of opposite rays.
Examples
- Concept Summary – Interpreting a Diagram. Page 38
- 1,2,3,4
- Page 39 # 8, 12,16, 30
Assignment
Page 38 #3-19 Odd, 21-33 Mult of 3.
Lesson 1.6
Lesson: 1.6
Page: 42
Title: Classify Polygons
EQ: How do you classify polygons
Skill Learned: You will learn the names of the most common polygons.
Assignment Review
- Page 38 # 9, 15, 21, 27, 30
Review Vocabulary and Postulates/Theorems
- Complementary and Supplementary Angles
- Adjacent Angles
- Vertical Angles
- Linear Pair
New Vocabulary and Postulates/Theorems
- Polygon – a polygon is a closed plane figure that is formed by 3 or more line segments (sides) and each side intersects exactly 2 other sides.
- Vertex – Each endpoint of a side is a vertex of the polygon.
- Convex Polygon – If no line that is defined by the endpoints of a side contains any points on the interior of the polygon.
- Concave Polygon – If a polygon is NOT convex, then it is a concave polygon.
- N-Gon – A polygon with N sides. A polygon with 11 sides is an 11-Gon for example.
- Equilateral Polygon. A polygon where all sides are congruent or have the same length.
- Equiangular Polygon. A polygon where all the angles on the interior of the polygon are congruent or have the same measure.
- Regular Polygon – A convex polygon that is both equilateral and equiangular.
Examples
- 1,2,3. Problems 4, 6, 12, 14
Assignment
Lesson 1.7
Lesson: 1.7
Page: 49
Title: Find Perimeter, Circumference, and Area.
EQ: How do you find the perimeter and area of a figure?
Skill Learned: You will learn how to answer this question by using area and perimeter formulas.
Assignment Review
Review Vocabulary and Postulates/Theorems
- Concave/Convex Polygon
- N-Gon
- Equilateral/Equiangular
New Vocabulary and Postulates/Theorems
- Perimeter – Distance around a figure
- Circumference – Distance around a circle
- Area – Amount of surface covered by a figure
- Perimeter Formulas for Square, Triangle, Rectangle
- Area Formulas for Square, Rectangle, Triangle and Circle
- Circumference Formula for a Circle.
- Diameter – Twice the radius of a circle
Examples
- 1, 2,3, Problems 4, 12, 16, 24, 26
Assignment
- Page 52 # 3-33 Multiples of 3
Next: Chapter Review and Test.