Module 7 · Class 7 Olympiad · Formula Sheet
Lines and Angles Formulas — Class 7 Olympiad
Explore angle pairs, parallel lines with transversals, and solve multi-step angle-finding problems.
Detailed formula cards for Lines and Angles 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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