We reviewed Lessons 8-4 Solve Problems Using Angle Relationships and 8-5 Solve Problems Involving Circumference of a Circle. We completed several problems using both formulas.
Review for quiz on Lessons 8-5 and 8-6.
8-5 Solve Problems Involving Circumference of a Circle – We discovered the measure of angles that are formed by intersecting lines and rays can be determined when the relationships between different types of angles are known.
8-6 Solve Problems Involving Area of a Circle – We calculated the area of a circle by using the radius from the circumference formula.
8-6 Solve Problems Involving Area of a Circle – We reviewed the formulas for finding the circumference and area of a circle. Then we practiced problem solving on real-world word problems.
Assignment: Complete assigned homework word problems from Lesson 8-6.
8-6 Solve Problems Involving Area of a Circle – We calculated the area of a circle and used it to find the radius and diameter. Next we practiced solving problems involving the area of a circle. We used the formula for the area of a circle to solve problems by substituting the known values for area and/or radius to solve for the unknown value.
8-5 Solve Problems Involving Circumference of a Circle – We calculated the circumference, Radius, or diameter of a circle. Then we recognized the relationship between the circumference and the diameter of the circle and pi. We discovered the measure of angles that are formed by intersecting lines and rays can be determined when the relationships between different types of angles are known.
We reviewed the concepts of complementary, supplementary, adjacent, and vertical angles and how they are used algebraically to find measurements. We completed homework from last night.
