Interior Angles
46 min 13 Examples
- Introduction to Video: Angles of Polygons
- Formulas for finding the sum of the interior and exterior angles of a polygon
- Find the sum of the interior angles and the measure of each interior and exterior angle for a regular polygon (Examples #1-5)
- Find the number of sides of a regular polygon, given an exterior angle (Examples #6-8)
- Given an interior angle of a regular polygon find the number of sides (Examples #9-11)
- How to find interior angles of a irregular polygon (Example #12)
- Find all the unknown angles for the given polygon (Example #13)
Area Composite Figures
1 hr 19 Examples
- Introduction to Video: Area of Polygons and Complex Figures
- Formulas for Finding Area of a Rectangle, Square, Triangle, Parallelogram, Rhombus, and Trapezoid
- Find the area of the polygon or the side length given the area (Examples #1-6)
- Find the indicated area or length of a polygon (Examples #7-12)
- Finding area of composite figures (Examples #13-15)
- Using ratios and proportions find the area or side length of a polygon (Examples #16-17)
- Using ratios and proportions find the area or length of a diagonal of a rhombus (Examples #18-19)
Area Regular Polygon
1 hr 24 min 17 Examples
- Introduction to Video: Area of Regular Polygons
- Formulas for finding Central Angles, Apothems, and Polygon Areas
- How to find the measure of a central angle given a regular polygon (Examples #1-4)
- Find the area of the regular polygon given the apothem and perimeter (Examples #5-7)
- Find the length of the apothem for the given square (Example #8)
- Find the indicated measure for a regular polygon (Examples #9-10)
- Find the area of the regular polygon (Examples #11-12)
- Calculate the area of the regular polygon (Examples #13-14)
- Using ratios to find the perimeter and area of similar polygons (Examples #15-17)
Circumference
45 min 13 Examples
- Introduction
- Understanding circumference and the arc length theorem
- Find the circumference (Examples #1-4)
- Find the arc length, central angle, or radius (Examples #5-8)
- Find the indicated measures (Examples #9-11)
- Using the arc length theorem find the values of each variable (Examples #12-13)
Area Circle
57 min 12 Examples
- Introduction to Video: Areas of a Circles, Sectors, and Segments
- Formulas for finding the Area of a Circle, Area of a Sector and Area of a Segment
- Find the area of the circle or sector (Examples #1-4)
- Find the area of the semicircle, sector or segment (Examples #5-9)
- Find the area of the shaded region (Examples #10-12)
Chapter Test
1 hr 3 min 29 Problems
- Find the area of the shaded region (Problems #1-6)
- Find the area of the shaded region (Problems #7-9)
- Determine the number of sides or the measure of the central angle (Problems #10-11)
- Determine the measure of the perimeter, apothem or area (Problems #12-14)
- Determine the radius, degree of the arc, or the length of the arc (Problems #15-17)
- Determine the following given a regular hexagon inscribed in a circle (Problems #18-23)
- Determine the following given a regular hexagon inscribed in a circle (Problems #14-27)
- Find the ratios for perimeter and area given similar polygons (Problems #28-29)