Class 4 (ICSE) • MathematicsChapter 9: Geometry - Perimeter⭐ Topic 2
Practice and Revision - Geometry - Perimeter
Let us practise and revise what we learned about geometry - perimeter. Perimeter is the total distance around the outside of a shape, calcul
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Fun picture
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Learn the idea step by step
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To find the perimeter of a shape, we add together the lengths of all its sides.
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For a rectangle, the perimeter is calculated as 2 times (length + width), since opposite sides are equal.
Quick revision
Remember these!
- Perimeter is the distance around a shape.
- We add all side lengths to find perimeter.
- Rectangle perimeter = 2 x (length + width).
- Square perimeter = 4 x side length.
- All sides of a square are equal.
- Perimeter helps in real-life situations.
- Fencing a garden uses perimeter calculation.
- Practice helps master perimeter problems.
Words to know
geometry - perimeter