अध्याय 4 · Class 9 UP Board · Formula Sheet
Linear Equations in Two Variables Formulas — Class 9 UP Board
दो चरों वाले रैखिक समीकरण — आलेखीय और बीजगणितीय विधि से हल।
Detailed formula cards for Linear Equations in Two Variables are being prepared. Meanwhile, practice questions to master this topic.
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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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