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Perimeter and Area of Polygons

 

Lesson 1

 

 

Problem:

 

What is the area of a parallelogram with base 18 mm, side length 12 mm, and height 5 mm?

Solution
Step 1:
  

Area of parallelogram = Base x perpendicular height

 

Base = 18 mm

Perpendicular height = 5 mm

Solution
Step 2:
  

Area of parallelogram = Base x perpendicular height

                                         = 18 mm x 5 mm

                                         = 90 sq mm

 

Try two practice problems:

 A.

What is the perimeter of a parallelogram with base 26 cm, side length 71 cm, and height 31 cm?

B.  

What is the area of a parallelogram with base 34 mm, side length 72 mm, and height 19 mm?

 

 

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