Perimeter and Area
Objective

Examine the relationship between perimeter and area

Vocabulary: Define these terms using the web pages listed below.

perimeter, area, square, rectangle, parallelogram, polygon

Assignment
Go to http://www.aaamath.com/geo.html Click on the following:
  • Perimeter of a Square
  • Perimeter of a Rectangle
  • Perimeter of a Parallelogram
  • Area of a square
  • Area of a Rectangle
  • Area of a Parallelogram

Complete your math worksheets by writing an explanation of how to find each of the above.  After writing your explanation complete the interactive practice and challenge game and record your score on the math worksheet.

More Practice
The distance around a plane around a polygon or plane geometric figure is called the  perimeter. To find the perimeter of any quadrilateral or polygon add the lengths of its sides.  For quadrilaterals with congruent sides, you can use a formula to find the perimeter.
Rectangle P = 2 (l + W)

P = 2(8 + 2) = 20

P = 20 cm

 

 

 Parallelogram P = 2(b + s)

P = 2(24 + 6) = 60

P = 60 m

 

 Equilateral Triangle  P = 3s

P = 3 * 8 = 24

P = 24 cm

 

Find the perimeter of each figure.
(1)

(2)

(3)

(4)

Click here for answers          Need to review?

Perimeter and Area Quiz

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Answers
1)

P = 2(12 + 9) = 42

P = 42 cm

 2)

P = 4(5) = 20

P = 20 m

3)

P = 6(1.5) = 9

P = 9 cm

4)

P = 3.1 + 6.8 + 7.2 = 17.1

P = 17.1 cm