## 4.3 **Geometric Measurement— Perimeter of Polygons**

**Geometric measurement: recognize perimeter as an attribute of plane figures and distinguish between linear and area measures.**

3.MD.8 Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.

__perimeter part 1__-click here

__perimeter of polygons__-click here

__identify the perimeter of polygons__-click here

**Essential questions**

• How do you solve real-world problems involving perimeter of polygons?

• How do you calculate the perimeter of an object?

• How do you explain the area of an object?

• If an object has an unknown side length, how can you find that length?