Unit 7 · Class 8 IB MYP · Formula Sheet

Volume & Surface Area Formulas — Class 8 IB MYP

Calculate volume and surface area of prisms, cylinders, and composite solids.

Key Formulas

Volume of Prism

V = \text{Base Area} \times h

Volume of Cylinder

V = \pi r^2 h

TSA of Cylinder

2\pi r(r + h)

Volume of Cuboid

V = l \times w \times h

TSA of Cuboid

2(lw + wh + hl)

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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Frequently Asked Questions

How many formulas are in Class 8 IB MYP Volume & Surface Area?+
There are 5 formulas in the Volume & Surface Area chapter for Class 8 IB MYP. Each formula is essential for solving problems in this topic.
How to remember Volume & Surface Area 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 Volume & Surface Area formulas enough for exams?+
Yes, these formulas cover the complete IB MYP Class 8 syllabus for Volume & Surface Area. Practice applying them to different types of questions for full exam readiness.

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