Mensuration
Mensuration is an important Maths topic for students who want a quick, reliable study reference.
This guide explains the meaning, core idea, common uses, and exam relevance of Mensuration in simple language. Use it for class revision, homework support, project preparation, and quick concept recall before tests.
When studying this topic, first understand the definition, then connect it with examples from textbooks, classroom notes, and everyday situations. Write the key points in your own words and revise them with related SaralStudy resources.
- Read the concept carefully and note the keywords.
- Practise one or two examples after reading.
- Use related pages to revise connected topics.
Mensuration: Explanation, Formulae and Practice
For maths revision, write the known values, choose the correct formula or rule, show each step clearly, and check the final unit or condition.
Practical Formulae
- Average = sum of observations / number of observations.
- Perimeter of a rectangle = 2(length + breadth).
- Area of a rectangle = length x breadth.
- Area of a triangle = 1/2 x base x height.
- Percentage = (part / whole) x 100.
Solved Example
Question: Find the area of a rectangle of length 12 cm and breadth 5 cm.
Working: Area = length x breadth = 12 x 5.
Result: Area = 60 square cm.
Unanswered Practice Questions
Try these yourself before checking notes or calculators.
- Find the average of 8, 10, 12 and 14.
- Find the perimeter of a rectangle of length 9 cm and breadth 4 cm.
- Find 25% of 360.
- Find the area of a triangle with base 10 cm and height 7 cm.
Connected SaralStudy Resources
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