Chapter 8 · Class 6 ICSE · Formula Sheet

Basic Geometry (Points, Lines & Angles) Formulas — Class 6 ICSE

Learn about points, lines, rays, segments, and types of angles with geometric constructions.

Key Formulas

Complementary Angles

\angle A + \angle B = 90°

Supplementary Angles

\angle A + \angle B = 180°

Vertically Opposite Angles

\text{Equal in measure}

Angles on a Line

\angle 1 + \angle 2 = 180°

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 6 ICSE Formulas

Frequently Asked Questions

How many formulas are in Class 6 ICSE Basic Geometry (Points, Lines & Angles)?+
There are 4 formulas in the Basic Geometry (Points, Lines & Angles) chapter for Class 6 ICSE. Each formula is essential for solving problems in this topic.
How to remember Basic Geometry (Points, Lines & 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 Basic Geometry (Points, Lines & Angles) formulas enough for exams?+
Yes, these formulas cover the complete ICSE Class 6 syllabus for Basic Geometry (Points, Lines & Angles). Practice applying them to different types of questions for full exam readiness.

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