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Why Can’t Perimeter be a Measure of Area?
Last updated at March 13, 2026 by Teachoo
Class 8 (Ganita Prakash - 1, 2 & Old NCERT)
Chapter 7 Class 8 - Area (Ganita Prakash II)
- Area of Rectangle and Square
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Perimeter vs Area
- Figure it out - Page 150-152
- Area of Triangle
- Applications of Area of Triangle Formula
- Triangles between Parallel Lines with a Common Base
- Figure it out - Page 157-159
- Area of any Polygon
- Figure it out - Page 160
- Area of Parallelogram
- Area of Rhombus
- Area of Trapezium
- Figure it out - Page 169-170
- Areas in Real Life
Transcript
Why Can’t Perimeter be a Measure of Area? Area is not Perimeter Perimeter (P) Area (A) Same Perimeter, Different Area Larger Perimeter can have Smaller Area A. Examples Rectangle A Rectangle B P of A (26) > P of B (20) BUT Area of A (12) < Area of B (16) B. Spiky Coral Simple Square Why is P so large? Because the path around all its folds is very, very long! P of Complex (120) > P of Square (60) BUT Area of Complex (30) < Area of Square (225) Key Takeaway Perimeter measures distance 'around'. Area measures space 'inside'. They are different and independent measures.
