logging in or signing up Finding Area and Perimeter mrferrell Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 2556 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: July 19, 2009 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Slide 1: 1 This pool measures 25 ¼ feet by 80 feet. What is the perimeter of the pool? Objective : 2 Objective Solve real-world problems involving area and perimeter. Determining Perimeter : 3 Determining Perimeter Slide 4: 4 Equation: P = 15 + 12 + 13 P = 30 m Tom is going to put a fence around his rock garden. His garden is in the shape of a triangle with the sides measuring 15 m, 12 m and 13 m. How much fence does he need? Slide 5: 5 6 + 7 + 8 + 8 = P P = 29 inches Finding the Area? : 6 Finding the Area? How do you find the area of a square? How do you find the area of a rectangle? How do you find the area of a triangle? Formulas : 7 Formulas Triangle = ½ x base x height Rectangle = length x width Square = s2 Area of a Triangle : 8 Area of a Triangle Calculate the area of each triangle. 5 cm 3 cm 10 ft 12 ft 13 ft 13 ft 4 cm Area of a Rectangle : 9 Area of a Rectangle Calculate the area of each rectangle. 4 ft 7 m 12 ft 5 m Area of a Square : 10 Area of a Square Calculate the area of the square. Area of a Square : 11 Area of a Square Calculate the area of each square. 2 cm Area of a Rectangle : 12 Area of a Rectangle Calculate the area of the rectangle by multiplying length times width. A = L × W = 9 × 3 = 27 cm2 Area of a Triangle : 13 Area of a Triangle Area = ½ × base × height height base base height Area of a Triangle : 14 Area of a Triangle Area = ½ × base × height 10 in 4 in 6 m 8 m A = ½ × 6 × 8 = 3 × 8 = 24 m2 A = ½ × 4 × 10 = 2 × 10 = 20 in2 Triangle vs. Rectangle : 15 Triangle vs. Rectangle Base = length Height = width Area of Triangle = ½ of Area of Rectangle = ½ (L × W) or ½ (base × height) Example : 16 Example A typical size for a photograph is 8 × 10 inches. What is the area of the photo? Example : 17 Example Mr. Liddle is re-painting his chalkboard and needs to know its area in order to buy enough paint. His chalkboard is 4 ft tall and 6 ft long. What is the area of the chalkboard? Demonstration : 18 Demonstration Marie is making a quilt by cutting fabric squares diagonally across into triangles. What is the area of each triangle created from a 4-inch square? 4 in 4 in 4 in Demonstration : 19 Demonstration Area of triangle = ½ × base × height = ½ × 4 × 4 = 8 in2 You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Finding Area and Perimeter mrferrell Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 2556 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: July 19, 2009 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Slide 1: 1 This pool measures 25 ¼ feet by 80 feet. What is the perimeter of the pool? Objective : 2 Objective Solve real-world problems involving area and perimeter. Determining Perimeter : 3 Determining Perimeter Slide 4: 4 Equation: P = 15 + 12 + 13 P = 30 m Tom is going to put a fence around his rock garden. His garden is in the shape of a triangle with the sides measuring 15 m, 12 m and 13 m. How much fence does he need? Slide 5: 5 6 + 7 + 8 + 8 = P P = 29 inches Finding the Area? : 6 Finding the Area? How do you find the area of a square? How do you find the area of a rectangle? How do you find the area of a triangle? Formulas : 7 Formulas Triangle = ½ x base x height Rectangle = length x width Square = s2 Area of a Triangle : 8 Area of a Triangle Calculate the area of each triangle. 5 cm 3 cm 10 ft 12 ft 13 ft 13 ft 4 cm Area of a Rectangle : 9 Area of a Rectangle Calculate the area of each rectangle. 4 ft 7 m 12 ft 5 m Area of a Square : 10 Area of a Square Calculate the area of the square. Area of a Square : 11 Area of a Square Calculate the area of each square. 2 cm Area of a Rectangle : 12 Area of a Rectangle Calculate the area of the rectangle by multiplying length times width. A = L × W = 9 × 3 = 27 cm2 Area of a Triangle : 13 Area of a Triangle Area = ½ × base × height height base base height Area of a Triangle : 14 Area of a Triangle Area = ½ × base × height 10 in 4 in 6 m 8 m A = ½ × 6 × 8 = 3 × 8 = 24 m2 A = ½ × 4 × 10 = 2 × 10 = 20 in2 Triangle vs. Rectangle : 15 Triangle vs. Rectangle Base = length Height = width Area of Triangle = ½ of Area of Rectangle = ½ (L × W) or ½ (base × height) Example : 16 Example A typical size for a photograph is 8 × 10 inches. What is the area of the photo? Example : 17 Example Mr. Liddle is re-painting his chalkboard and needs to know its area in order to buy enough paint. His chalkboard is 4 ft tall and 6 ft long. What is the area of the chalkboard? Demonstration : 18 Demonstration Marie is making a quilt by cutting fabric squares diagonally across into triangles. What is the area of each triangle created from a 4-inch square? 4 in 4 in 4 in Demonstration : 19 Demonstration Area of triangle = ½ × base × height = ½ × 4 × 4 = 8 in2