Goal: The learner will find area and perimeter.

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Honors Geometry Section 5.1 Perimeter and Area

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Presentation transcript:

Goal: The learner will find area and perimeter. Lesson 2.2 Goal: The learner will find area and perimeter.

Perimeter l w w l Perimeter of a Rectangle= 2 * length + 2*width The distance all the way around a figure. Sum the side lengths l w w l Perimeter of a Rectangle= 2 * length + 2*width

Find the Perimeter 100 200

Find the perimeter 8 10 4 20

Area of a rectangle l w w l Area = length * width Square units Find the area if the width is 13 cm and the length is 20 cm. l w w l

Find the area 8 10 4 20

Find the ARea 25 13

Solve for a missing dimension Write and solve an equation to find the width of a rectangle. Its area is 195 square meters and its length is 15 meters. Steps Write down the formula you need. Write in the numbers you know. Divide off the number by the variable.

Try it again The area of the rectangle is 91 square inches and the width is 7 in. What is the length?

Assignment p. 68 #6-14 evens, 15, 17-21, 23, 29 Challenge #35