Slide 1 Ms. Ellmer Winter, 2010-2011 Slide 2 10-1: Areas of Parallelograms & Triangles Background: Once you know what a dimension does for you, you can take two dimensions…

Slide 1 Objective: Find the area of any triangle given at least three pieces of information. Process: Derive several formulas to allow use of given information (to avoid…

Slide 1 5 6 4 8 10 12 C A B X Z Y 1 Exercise ∆XYZ ~ ∆LMN. Dimensions are in inches. Find LM. 6 in. 10 L P M N 20 X W Y Z 16 12 9.6 2 ∆XYZ ~ ∆LMN. Dimensions are in…

American Choice Lesson 2 Summary Warm-Up Use the following equation to write three more true equations: Ratios and Proportions What is a ratio? A comparison of two numbers…

Objective: Find the area of any triangle given at least three pieces of information. Process: Derive several formulas to allow use of given information (to avoid rounding…