1. http://www.mathslideshows.com Take out a calculator to try to solve the following problems on area of composite figures.

2. For Learning to Happen! Pay close attention to this lesson. This lesson is very short. However, this is a challenging lesson! It is important to follow along with the slides so that you know how to do you know how to calculate the area of composite figures!

3. http://www.mathslideshows.com To understand COMPOSITE FIGURES you first must know how to calculate missing sides.

4. What are the missing side lengths ? 12 m 6 m 3 m 9 m 3 m 12 m– 9 m =

5. http://www.mathslideshows.com What are the missing side lengths ? 12 m 6 m 3 m 9 m 3 m 6 m– 3 m =

6. http://www.mathslideshows.com What are the missing side lengths ? 10 ft 7 ft 3 ft 10 ft – 7 =

7. http://www.mathslideshows.com What are the missing side lengths ? 1 in 2 in 3 in 14 in 5 in 3 in 5 in+ 3 in+ 2 in+ 1 in = 11 in 14 in– 11 in =

8. http://www.mathslideshows.com There are multiple methods for solving Area of Composite Figures. The 1 st method I am going to show you is how to break it up into simpler area problems.

9. What is the total shaded area ? 12 m 6 m 3 m 9 m 3 m

10. http://www.mathslideshows.com The 2 nd method involves finding an entire area and then subtracting smaller areas. Pay attention you don’t want to miss this!

11. What is the total shaded area ? 12 m 6 m 3 m 9 m 3 m

12. http://www.mathslideshows.com Find the perimeter of the figure below. Perimeter 4 8 16 6 8 4 10 8+16 +8+10+4+6 +4 = 56 UNITS 16 – 6 = 10

13. http://www.mathslideshows.com Find the area of the figure below. Area 4 8 16 6 8 4 10

14. http://www.mathslideshows.com Find the area of the figure below. A = bh A = 12 9 Area of the rectangle: Area of the triangle: A = bh 1 2 __ A = (6)(7) 1 2 __ A = 42 1 2 __ Subtract the area of the triangle from the area of the rectangle. 5 ft 12 ft 6 ft 9 ft 12- 5 = 7ft = 21 ft 2 = 108 ft 2

15. http://www.mathslideshows.com Find the area of the figure below. A = bh A = 12 9 Area of the rectangle: Area of the triangle: A = bh 1 2 __ A = (6)(7) 1 2 __ A = 42 1 2 __ 5 ft 12 ft 6 ft 9 ft 12- 5 = 7ft = 21 ft 2 = 108 ft 2 Shaded area= Area of the rectangle – Area of the triangle A = 108 – 21 = 87 ft 2

16. http://www.mathslideshows.com THE END!!! Take out your study guide!

17. http://www.mathslideshows.com #10 20 m 12 m 13 m Perimeter Area P = 12 + 20 + 13 + 25 P = 70 m 5 m 25m ANOTHER WAY: Area of a Trapezoid A = (b 1 + b 2 ) x h 2

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19. http://www.mathslideshows.com AREA FORMULAS $30 1. Area of a Rectangle & Square 2. Area of a Parallelogram & Triangle 3. Area of a Trapezoid 4. Area of a Circle Discovery WS 5. Area of Irregular Figures 6. Area of Composite Figures 7. Perimeter & Area Review DECIMALS $30 1. Rounding Decimals 2. Add and Subtract Decimals 3. Add & Subtract Negative Decimals 4. Multiply Decimals 5. Divide Decimals 6. Multiply & Divide Negative Decimals 7. Decimal Place Value, Perimeter & Area EQUATIONS $50 1. Equation Introduction 2. Add & Subtract One Step Equations 3. Multiply & Divide One Step Equations 4. Integers and Equations WS 5. Solve 2 Step Equations Using Algebra Tiles WS 6. Solve 2 Step Equations WS 7. Multi-Step Equations Combine Terms Day 1 8. Multi-Step Equations Translate Day 2 WS 9. Negative Coefficient Equations 10. Variables On Both Sides Equations Algebra Tiles WS 11. Distributive Property Equations WS 12. Equations Review EXPONENTS & POWERS $30 1. Exponents Introduction 2. Zero and Negative Exponents 3. Fractions with Negative Exponents 4. Multiplying Exponents 5. Factoring, Fraction Exponents 6. Divide Powers, Multiply & Divide Monomials 7. Exponent Review EXPRESSIONS $20 1. Evaluate Algebraic Expressions 2. Writing Algebraic Expressions 3. Combing Like Terms Algebra Tiles WS 4. Combine Terms & Properties Review 5. Terms, Evaluate, Perimeter & Area FORMULAS $15 1. Perimeter, Area, & Distance Formulas 2. Commission, Sales Tax & Leaving a Tip 3. Unit Analysis, Convert Units, Mass Formula 4. Simple Interest http://www.mathslideshows.com

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