Chapter 14 · Class 8 CBSE · Formula Sheet

Mensuration (Area & Volume) Formulas — Class 8 CBSE

Calculate area of trapezium, polygon, and surface area and volume of solids.

Key Formulas

Area of Trapezium

A = \dfrac{1}{2}(a + b) \times h

Area of Rhombus

A = \dfrac{1}{2} \times d_1 \times d_2

CSA of Cube

\text{CSA} = 4a^2

TSA of Cube

\text{TSA} = 6a^2

Volume of Cube

V = a^3

CSA of Cuboid

\text{CSA} = 2h(l + b)

TSA of Cuboid

\text{TSA} = 2(lb + bh + hl)

Volume of Cuboid

V = l \times b \times h

CSA of Cylinder

\text{CSA} = 2\pi rh

TSA of Cylinder

\text{TSA} = 2\pi r(r + h)

Volume of Cylinder

V = \pi r^2 h

Worked Examples

1Using: Area of Rectangle

Find the area of a rectangle with length 12 cm and breadth 5 cm.

Step 1: Area = l x b

Step 2: = 12 x 5 = 60 sq. cm.

Answer: 60 sq. cm

2Using: Perimeter of Square

Find the perimeter of a square with side 8 m.

Step 1: Perimeter = 4a

Step 2: = 4 x 8 = 32 m.

Answer: 32 m

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More Class 8 CBSE Formulas

Squares, Cubes & Their RootsExponents & PowersRational NumbersQuadrilateralsNumber Patterns & PuzzlesAlgebraic Expressions & Identities

Frequently Asked Questions

How many formulas are in Class 8 CBSE Mensuration (Area & Volume)?+
There are 11 formulas in the Mensuration (Area & Volume) chapter for Class 8 CBSE. Each formula is essential for solving problems in this topic.
How to remember Mensuration (Area & Volume) formulas easily?+
Practice regularly with worked examples, group related formulas together, and use SparkEd's interactive practice mode to reinforce your memory through problem-solving.
Are these Mensuration (Area & Volume) formulas enough for exams?+
Yes, these formulas cover the complete CBSE Class 8 syllabus for Mensuration (Area & Volume). Practice applying them to different types of questions for full exam readiness.

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