Try These

1.Use the rubber bands to create all these figures on the geoboard and calculate the areas of the yellow region of each shape.

Remember: Perimeter is measured in units, which are called: inches, meters, yards, etc. The area however, is measured in units2, which are called square inches, square meters, square yards, etc.

Note: The distance between 2 red pegs is equal to 1 unit length or 1 unit width.

a)
figure A
b)
figure B
c)
figure C
 

 

To check you answers:

  • Click on one of the sides of a polygon.
  • Click on Measure and look at the area that it shows.
  • Did you calculate the correct area previously? Discuss with your partner.
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