Geometry/Notes 11.1
- 1. Areas of Polygons and Circles Chapter 11
- 2. Areas of Parallelograms Section 11.1
- 3. Areas of Parallelograms • How do I find the perimeters and areas of parallelograms? • How do I tell if a points on a coordinate plane define a parallelogram?
- 4. Parallelogram Review • Parallelogram – Quadrilateral with opposite sides parallel. • Opposite sides and angles are congruent.
- 5. Perimeter • Perimeter: sum of all the sides
- 6. Area of a Parallelogram •
- 7. Example • Find the perimeter and area of parallelogram RSTU.
- 8. Example • Find the perimeter and area of parallelogram DEFG.
- 9. Application • The Kanes are planning to sod 200 ft some parts of their yard. Find the number of square yards of grass needed. 150 ft
- 10. Application • The Wagners are planning to put hardwood floors in their dining room, living room, and kitchen. Find the number of square yards of wood needed.
- 11. Coordinate Plane • Plot: A(-2, 3), B(4, 1), C(3, -2), and D(-3, 0) on the Coordinate Plane. • Is the quadrilateral a square, rectangle, or parallelogram? • b) Find the area of the figure.
- 12. Coordinate Plane • Plot: A(-1, 1), B(1, 4), C(5, 4), and D(3, 1) on the Coordinate Plane. • Is the quadrilateral a square, rectangle, or parallelogram? • b) Find the area of the figure.
- 13. Homework • Page 598 ▫ #12 – 26 Even
- 14. Lesson Plan • Intro ▫ Areas of parallelogram • Standards- 10.1 • Supplies – slides, whiteboard, note sheets • Timing: One day for notes, one day for a combined review of 10.1 and 10.2 followed by a quiz • Day 1: ▫ Essential Questions- slides 3 ▫ Input-slides 4, - 6 ▫ Guided Practice - slides 7 - 12 ▫ Independent Practice – bookwork