Expressions in Perimeter Problems. Suppose you are given the perimeter, and need to find the sides. Example: The perimeter of the rectangle is 66. –What.

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Presentation transcript:

Expressions in Perimeter Problems

Suppose you are given the perimeter, and need to find the sides. Example: The perimeter of the rectangle is 66. –What is the value of x? 6x – 4 2x + 5 The Perimeter is the Sum of all sides: (6x – 4) + (2x + 5) + (6x – 4) + (2x + 5) = 66 16x + 2 = 66 16x = 64 x = 4 Combine Like Terms

Example: The perimeter of the rectangle is 66. –The value of x is 4. –What is the value of each side? –What is the area? 6x – 4 = 6(4) – 4 = 20 2x + 5 = 2(4) + 5 = 13 The Area is the base multiplied by the height. A = (20)(13) = 260 Also 20 Also 13

Worksheet: Area and Perimeter H Area and Perimeter #10 is up front. Both Worksheets are due TODAY.