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LESSON 1 Investigating Perimeter and Area
![](../../../img/g4/unit02/SG_G4U2L1V3_FIGA.png)
In the Antopolis town square, the ants have built a beautiful fountain. In the evening, the ants come out to stroll around the perimeter of the fountain.
This diagram shows the ants walking along the perimeter of the fountain.
![](../../../img/g4/unit02/SG_G4U2L1V3_FIGB.png)