Splash Screen. Lesson Menu Five-Minute Check (over Lesson 11–5) Main Idea and Vocabulary Example 1:Find the Area of a Composite Figure Example 2:Real-World.

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Presentation transcript:

Splash Screen

Lesson Menu Five-Minute Check (over Lesson 11–5) Main Idea and Vocabulary Example 1:Find the Area of a Composite Figure Example 2:Real-World Example

Main Idea/Vocabulary composite figure semicircle Find the areas of composite figures.

Example 1 Find the Area of a Composite Figure Find the area of the figure in square centimeters. The figure can be separated into a rectangle and a triangle. Find the area of each.

Example 1 Find the Area of a Composite Figure Area of Rectangle A= l wArea of a rectangle A=15 ● 10Replace l with 15 and w with 10. A=150Multiply. Area of Triangle

Example 1 Find the Area of a Composite Figure Answer: The area is or 160 square centimeters.

1.A 2.B 3.C 4.D Example 1 A.82 yd 2 B.108 yd 2 C.119 yd 2 D.172 yd 2 Find the area of the figure.

Example 2 WINDOWS The diagram below shows the dimensions of a window that is 3.4 feet by 7.2 feet. Find the area of the window. Round to the nearest tenth. The figure can be separated into a semicircle and a rectangle.

Example 2 Area of Semicircle  

Example 2 Area of Rectangle A= l wArea of a rectangle Answer: The area is or about 23.2 square feet. BrainPOP: Area of Polygons A=5.5 ● 3.4Replace l with 7.2 – 1.7 or 5.5 and w with 3.4. A=18.7Multiply.

1.A 2.B 3.C 4.D Example 2 A ft 2 B ft 2 C ft 2 D ft 2 DRIVEWAY The diagram shows the dimensions of a new driveway. Find the area of the driveway. Round to the nearest tenth.

End of the Lesson

Resources Five-Minute Check (over Lesson 11–5) Image Bank Math Tools Area of Trapezoids Drawing 3-D Figures Area of Polygons

1.A 2.B 3.C 4.D Five Minute Check 1 (over Lesson 11-5) A.200 ft 2 B.250 ft 2 C.450 ft 2 D.300 ft 2 Solve the problem by solving a simpler problem. Mr. Cole decided to build a deck around his swimming pool. His pool is 25 feet by 10 feet and he wants the deck to be 2.5 feet wide. What will the area of the deck be?

1.A 2.B 3.C 4.D Five Minute Check 2 (over Lesson 11-5) A.$48.28 B.$19.72 C.$20.40 D.$47.60 Solve the problem by solving a simpler problem. Over the weekend, Darrell spent $68. Of that, about 71% was spent on a game. About how much money was not spent on a game?

1.A 2.B 3.C 4.D Five Minute Check 3 (over Lesson 11-5) A.72 bracelets B.96 bracelets C.48 bracelets D.144 bracelets Solve the problem by solving a simpler problem. Becky can make 6 bracelets in 3 days. How many bracelets can she and two friends make in 8 days working at the same rate?

1.A 2.B 3.C 4.D Five Minute Check 4 (over Lesson 11-5) A.7 B.8 C.9 D.10 The graph shows the results of the 2006 Winter Olympics. The U.S. received a total of 25 medals. How many were gold?

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