Grade 7 Math Blogorama at Sargent Park

Tuesday, April 25, 2006

Sample questions on area and perimeter of polygons

For the following four problems you need to calculate both the perimeter and the area. Remember that to find the Area of the shapes you will have to break apart the large shape into smaller shapes that you know how to solve.

Image #1


Image #3

Image #3

Question #1, P = 96cm, A = 336cm2
Question #2, P = 23.8m, A = 24.25m2
Question #3, P = 61.6mm (don't forget the 2mm on the right side of the shape) A = 149.5mm2
Question #4, P= 60.2cm, A = 190.5cm2


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