Chapter 5 (Samacheer Kalvi) · Class 9 TN Board · Formula Sheet

Coordinate Geometry (ஆயத்தொலை வடிவியல்) Formulas — Class 9 TN Board

Cartesian plane, distance formula, section formula, and area of triangle.

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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 9 TN Board Formulas

Set Language (கணமொழி)Real Numbers (மெய்யெண்கள்)Algebra (இயற்கணிதம்)Geometry (வடிவியல்)Trigonometry (முக்கோணவியல்)Mensuration (அளவியல்)

Frequently Asked Questions

How many formulas are in Class 9 TN Board Coordinate Geometry (ஆயத்தொலை வடிவியல்)?+
There are several key formulas in the Coordinate Geometry (ஆயத்தொலை வடிவியல்) chapter for Class 9 TN Board. Each formula is essential for solving problems in this topic.
How to remember Coordinate Geometry (ஆயத்தொலை வடிவியல்) 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 Coordinate Geometry (ஆயத்தொலை வடிவியல்) formulas enough for exams?+
Yes, these formulas cover the complete TN Board Class 9 syllabus for Coordinate Geometry (ஆயத்தொலை வடிவியல்). Practice applying them to different types of questions for full exam readiness.

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