Chapter 8 · Class 4 ICSE · Formula Sheet

Geometry (Angles) Formulas — Class 4 ICSE

Types of angles, measuring with protractor, angle properties.

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Worked Examples

1Using: Supplementary Angles

If one angle is 65 degrees, find its supplement.

Step 1: Supplement = 180 - 65

Step 2: = 115 degrees.

Answer: 115 degrees

2Using: Vertically Opposite

Two lines intersect. If one angle is 40 degrees, find the vertically opposite angle.

Step 1: Vertically opposite angles are equal.

Step 2: The angle = 40 degrees.

Answer: 40 degrees

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More Class 4 ICSE Formulas

Numbers up to 99999Addition & Subtraction (Large)Multiplication (Multi-digit)Division (Long Division)Factors & MultiplesFractions (Unlike)

Frequently Asked Questions

How many formulas are in Class 4 ICSE Geometry (Angles)?+
There are several key formulas in the Geometry (Angles) chapter for Class 4 ICSE. Each formula is essential for solving problems in this topic.
How to remember Geometry (Angles) 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 Geometry (Angles) formulas enough for exams?+
Yes, these formulas cover the complete ICSE Class 4 syllabus for Geometry (Angles). Practice applying them to different types of questions for full exam readiness.

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SparkEd Maths provides free formula sheets for Class 1-10 across 7 education boards. All formulas are aligned to the 2025-26 syllabus.