Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 1 Solving Application Problems 3.

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Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 1 Solving Application Problems 3

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 2 R.1 Fractions 1.Use the formula for perimeter of a square to find the perimeter or the length of one side. 2.Use the formula for perimeter of a rectangle to find the perimeter, the length, or the width. 3.Find the perimeter of parallelograms, triangles, and irregular shapes. Objectives 3.1 Problem Solving: Perimeter

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 3 Use the formula for perimeter of a square to find the perimeter or the length of one side. A formula is just a shorthand way of writing a rule for solving a particular type of problem.

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 4 Use the formula for perimeter of a square to find the perimeter or the length of one side.

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 5 Use the formula for perimeter of a square to find the perimeter or the length of one side.

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 6 Use the formula for perimeter of a square to find the perimeter or the length of one side. Find the perimeter of a square that measures 9 ft on each side. The perimeter of the square is 36 ft. Example

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 7 Use the formula for perimeter of a square to find the perimeter or the length of one side. If the perimeter of a square is 40 cm, find the length of one side. The length of one side is 10 cm. Example

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 8 Use the formula for perimeter of a rectangle to find the perimeter, the length, or the width.

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 9 Use the formula for perimeter of a rectangle to find the perimeter, the length, or the width. Find the perimeter of this rectangle. Example

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 10 Use the formula for perimeter of a rectangle to find the perimeter, the length, or the width. (continued) The perimeter of the rectangle is 76 m. Example

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 11 Use the formula for perimeter of a rectangle to find the perimeter, the length, or the width. Example If the perimeter of a rectangle is 20 ft and the width is 3 ft, find the length. First, draw the rectangle.

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 12 Use the formula for perimeter of a rectangle to find the perimeter, the length, or the width. Example (continued) The length is 7 ft.

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 13 A parallelogram is a four-sided figure in which opposite sides are both parallel and equal in length. Find the perimeter of parallelograms, triangles, and irregular shapes.

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 14 Find the perimeter of parallelograms, triangles, and irregular shapes. Example Find the perimeter of the parallelogram. The perimeter is 40 m. To find the perimeter add the lengths of the sides.

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 15 A triangle is a figure with exactly three sides. Find the perimeter of parallelograms, triangles, and irregular shapes.

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 16 Find the perimeter of parallelograms, triangles, and irregular shapes. Example Find the perimeter of the triangle. The perimeter is 80 mm. To find the perimeter add the lengths of the sides.

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 17 Find the perimeter of parallelograms, triangles, and irregular shapes. Example Suppose the floor of a room is the shape shown below. If you want to put a wallpaper border around the room, how much material do you need?

Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 18 Find the perimeter of parallelograms, triangles, and irregular shapes. Example (continued) You need 66 ft of wallpaper border. To find the perimeter of the room add the lengths of the sides.