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Areas of Irregular Figures Section 11-4. Find the shaded area. Round to the nearest tenth, if necessary. Example: Finding the Areas of Composite Figures.

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Presentation on theme: "Areas of Irregular Figures Section 11-4. Find the shaded area. Round to the nearest tenth, if necessary. Example: Finding the Areas of Composite Figures."— Presentation transcript:

1 Areas of Irregular Figures Section 11-4

2 Find the shaded area. Round to the nearest tenth, if necessary. Example: Finding the Areas of Composite Figures

3 Find the shaded area. Round to the nearest tenth, if necessary. Example: Finding the Areas of Composite Figures shaded area:40 + 25 = 65 ft 2

4 Example: Find the shaded area. Round to the nearest tenth, if necessary. Total shaded area is about 1781.3 m 2.

5 Example: Finding the Areas of Composite Figures Find the shaded area. Round to the nearest tenth, if necessary. area of figure: 234 – 10.125 ≈ 202.2 ft 2

6 Example: Finding the Areas of Composite Figures Find the shaded area. Round to the nearest tenth, if necessary. area of figure: 100 –128  186.2 cm 2

7 Example: Find the shaded area. Round to the nearest tenth, if necessary. area of figure: 28.3 – 18 = 10.3 in 2

8 A company receives an order for 65 pieces of fabric in the given shape. Each piece is to be dyed red. To dye 6 in 2 of fabric, 2 oz of dye is needed. How much dye is needed for the entire order? Example: Fabric Application

9 Lesson Quiz: Part I 38.6 cm 2 Find the shaded area. Round to the nearest tenth, if necessary. 1. 2. 50 ft 2

10 Lesson Quiz: Part II $64.80 3.Mike is remodeling his kitchen. The countertop he wants costs $2.70 per square foot. How much will Mike have to spend on his remodeling project?


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