Perimeters of polygons
Mathematics · Measurement · procedural
Solve problems involving perimeters of polygons: find perimeter from side lengths, find an unknown side length, and explore rectangles with same perimeter but different areas (or vice versa)
What mastery looks like
- Calculate the perimeter of a rectangle with sides 8 cm and 5 cm
- Find the missing side of a pentagon with perimeter 30 cm and four known sides
- Draw two rectangles both with perimeter 24 cm but different areas
Check your understanding
If a rectangle has a perimeter of 24 cm and one side is 8 cm, can Perimeters of polygons work out the length of the other side — without drawing it?
Prerequisites
Required first
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