Find the area of each circle. Round to the nearest tenth. Use 3

Slides:

Advertisements

Similar presentations

Common Core Mathematical Practices. People who are good in math… Make sense of problems.

Advertisements

CIRCUMFERENCE Lesson 8-1. Vocabulary Start-Up A circle is the set of all points in a plane that are the same distance from a point, called the center.

The area of the circle is about 227 m 2. COURSE 2 LESSON 8-4 Find the area of the circle to the nearest unit. = (8.5) 2 Substitute 8.5 for the radius.

Unit 5: Area and Volume Part I: Area

Area of Quadrilaterals, Triangles, and Composite Figures Today you will learn to: find the area of quadrilaterals, triangles, and composite figures. M06.C-G.1.1.1:

Warm-Up Find the area: Circumference and Area Circles.

Course 2, Lesson 2-8 Find the sale price to the nearest cent. 1. $120 jacket; 30% discount 2. $10,500 car; 10% discount 3. $35 sweater; 18% discount; 3%

Course 2, Lesson The amount a cashier earns is shown in the table. Determine whether the amount earned is proportional to the number of hours worked.

Course 2, Lesson 1-1 Find the mean, median, and mode for each data set. Round to the nearest tenth if necessary. 1. number of cars in household: 1, 3,

Course 2, Lesson 1-2 Find each unit rate. Round to the nearest hundredth if necessary. 1. $3.99 for 16 ounces miles in 14 hours 3. $28 for 15 goldfish.

Course 2, Lesson 2-5 Use the determine reasonable answers strategy to solve Exercises 1–4. 1. If the speed limit is 65 miles per hour, what is a reasonable.

Write an integer for each situation. 1. stock market down 56 points

Course 2, Lesson 2-3 Estimate % of % of % of % of Twenty-two percent of the seventh-grade class at Santa Ana Middle.

1. $100 dinner; 20% gratuity 2. $12,300 car; 5% sales tax

Course 2, Lesson 2-6 Find each percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase or.

3. What is the constant of variation of the linear function. Pay $15

Course 2, Lesson 1-3 Simplify On her last science test, Maria answered of the questions incorrectly. Write as a fraction in simplest form.

Solve each inequality. Graph the solution set on a number line.

Holt Geometry 10-6 Volume of Prisms and Cylinders 10-6 Volume of Prisms and Cylinders Holt Geometry.

Surface Area of Three- Dimensional Figures Today you will learn to: determine the surface area of three- dimensional figures. M07.C-G.2.2.2: Solve real-world.

the right? Round to the nearest tenth.

Holt Geometry 10-6 Volume of Prisms and Cylinders Warm Up Find the area of each figure. Round to the nearest tenth. 1. an equilateral triangle with edge.

Course 2, Lesson 1-5 Use the four-step plan to solve each problem. 1. A comic book store took in $2,700 in sales of first editions during November. December.

Course 2, Lesson 7-5 Find the length of each object on a scale drawing with the given scale. Then find the scale factor. 1. a subway car 34 feet long;

Find the volume of each pyramid. Round to the nearest tenth.

Use the solve a simpler problem strategy to solve Exercises 1–3. 1. Mr. Cole decided to build a deck around his swimming pool. His pool is 25 feet by 10.

A ten-sided number cube with the numbers 1–10 on it is rolled. Find the probability of each event. Write each answer as a fraction. 1. P(3) 2. P(1 or 2)

Holt Geometry 10-6 Volume of Prisms and Cylinders 10-6 Volume of Prisms and Cylinders Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation.

Course 2, Lesson 7-6 Draw a top, a side, and a front view of the solid. 1. Draw the solid using the top, side, and front views shown. Use isometric dot.

HOW are percent diagrams used to solve real-world problems?

Solve by using a graph. 1. A carpet cleaner charges $25 per room cleaned. Predict the cost of having 5 rooms cleaned. 2. The table shows the number of.

Identify each solid. Name the number and shapes of the faces. Then name the number of edges and vertices Course 2, Lesson 8-1.

1. Construct a double box plot for the data in the table. Then compare the heights of the LA Lakers to the heights of the NY Knicks. 2. Candice used a.

Defining Success Grade 8, Unit 6: Lesson 2 Prisms to Cylinders This lesson is developed in 3 parts. To be successful in this lesson, you will be expected.

HOW is compound interest different from simple interest? Ratios and Proportional Relationships Course 2, Inquiry Lab after Lesson 2-8.

Find the surface area of each rectangular prism. Round to the nearest tenth if necessary Find the surface area of a rectangular prism that has.

Find the radius or diameter of each circle with the given dimensions. 1. d = 6 cm 2. r = 11 ft Find the circumference of each circle. Use 3.14 for π. Round.

Determine whether the conclusion is valid. Justify your answer. 1. To decide what main dish to serve at her wedding, Jeanne asks 50 of her friends and.

1. Akira earns $20 for every dog he washes. 2.

Find the surface area of each pyramid. Round to the nearest tenth.

Expressions and Equations

Solve. 1. A survey of high school students showed that 63% of students planned to take college courses after graduation. Predict how many of the 837 students.

Solve each inequality. Check your solution. 1. –3x ≥ k > 300 Solve each inequality. Graph the solution set on a number line. 4. 4p + 3 ≤ –1 5.

Holt McDougal Geometry 10-6 Volume of Prisms and Cylinders 10-6 Volume of Prisms and Cylinders Holt Geometry Warm Up Warm Up Lesson Presentation Lesson.

HOW is percent used to solve real-world problems? Ratios and Proportional Relationships Course 2, Inquiry Lab before Lesson 2-3.

Course 2, Lesson 7-4 Use the make a model strategy to solve Exercises 1 and 2. A 15-inch by 20-inch piece of poster board has a 3.5-inch square cut out.

Course 2, Lesson 2-2 Find each number. Round to the nearest tenth if necessary % of % of % of % of $ % of

Course 2, Lesson 1-7 Solve each proportion Solve. Assume all situations are proportional. 3. For every 4 students, 3 like peanut butter and jelly.

Solve each inequality. Graph the solution set on a number line. 1. 3a + 3 < y + 2 > –22 3. –5m – 5 ≤ Ann has only $10 to spend on carnival.

1. How many permutations are possible of the letters in the word secret? 2. Julie, Dan, Janet, Kevin, and Michael all enter a contest. Two names are pulled.

Compare and order integers Find the absolute value of an expression Lesson 2-1 Rational Numbers and Exponents.

Volume of Pyramids and Cones

Evaluate each expression if a = 3, b = 7, and c =

How can you use numbers and symbols to represent mathematical ideas?

Write each decimal as a fraction or mixed number in simplest form.

Find the value of x in each triangle

Use the four-step plan to solve each problem.

Lesson 1.3 Variables and Expressions (Glencoe book)

Five-Minute Check (over Lesson 12–3) Then/Now

Volume of Pyramids and Cones

Find the surface area of the figure.

Evaluate each expression. Round to the nearest tenth if necessary.

Bellwork: 2/12/18 (Block 3) Use the look for a pattern strategy to solve Exercises 1–3. 1. In a stadium, there are 10 seats in the 1st row, 13 seats in.

Estimate each product. Use a bar diagram if needed

Multiply. Write in simplest form

Solve each inequality. Graph the solution set on a number line.

Fluency- Integers Course X, Lesson X-X.

Lesson 3 Area of Composite Figures

Presentation transcript:

Find the area of each circle. Round to the nearest tenth. Use 3 Find the area of each circle. Round to the nearest tenth. Use 3.14 or for . 2. 4. 5. Rick wants to make a big cookie cake. If he uses a round cookie sheet that is 12 inches in diameter, about how much cookie dough will he need to cover the pan? Course 2, Lesson 8-3

ANSWERS 1. 78.5 cm2 2. 314 m2 3. 28.3 in2 4. 50.2 ft2 5. 113 in² Course 2, Lesson 8-3

HOW do measurements help you describe real-world objects? Geometry HOW do measurements help you describe real-world objects? Course 2, Lesson 8-3

Geometry 7.G.4 Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle. 7.G.6 Solve real-world and mathematical problems involving area, volume and surface area of two- and three-dimensional objects composed of triangles, quadrilaterals, polygons, cubes, and right prisms. Course 2, Lesson 8-3 Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.

Mathematical Practices Geometry Mathematical Practices 1 Make sense of problems and persevere in solving them. 2 Reason abstractly and quantitatively. 3 Construct viable arguments and critique the reasoning of others. 4 Model with mathematics. Course 2, Lesson 8-3 Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.

To find the area of a composite figure To find the area of a shaded Geometry To find the area of a composite figure To find the area of a shaded region Course 2, Lesson 8-3

Geometry composite figure Course 2, Lesson 8-3

How did what you learned today help you answer the Geometry How did what you learned today help you answer the HOW do measurements help you describe real-world objects? Course 2, Lesson 8-3

How did what you learned today help you answer the Geometry How did what you learned today help you answer the HOW do measurements help you describe real-world objects? Sample answers: To find the area of a composite figure, such as a miniature golf course hole To find the area of the shaded portion of a figure, such as the blueprint of a swimming pool area Course 2, Lesson 8-3

Geometry Functions Ratios and Proportional Relationships What measurements would you need to know in order to find the area of the figure at the right? What steps would you take to find its area? Course 2, Lesson 8-3