Discovering Geometry Chapter 8

Lesson 1: 8.1, 8.2Lesson 2: 8.3Lesson 3: 8.4Lesson 4: 8.5,8.6Lesson 5: 8.7Lesson 6: More 8.7

Warm-Up

Section 8-1 and 8-2: Areas of PolygonsIn these sections we will answer…

What is perimeter again? How do I find it?How can I find the area of basic polygons? Polygons like:Rectangle Triangle Parallelogram TrapezoidKite

Perimeter, Area of Rectangle and Triangle

Perimeter = the _____________ of the measure of the lengths of the_________________ of a polygon.

Rectangle Area = __________________ or _________________

where b = ______________ and h = _____________

8.1, 8.2 – Area of Polygons

Parallelograms:

Parallelogram Area = ___________________

where b = ___________ and h = __________

TrianglesTriangle Area = ___________________

where b= ___________ and h = ___________

Trapezoid Area Conjecture:Trapezoid Area = ____________________

where b1 = ___________,b2 = ___________, andh = ____________

Kites

Kite Area = _______________

where d1 = ____________, andd2 = ____________,