Lines And Angles
NIOS · Class 10 · Maths
All formulas from Lines And Angles in NIOS Class 10 Maths. Key equations, constants, and identities for board exam preparation.
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Basic Definitions
Types of Angles
Pairs of Angles
∠A + ∠B = 90°
∠A + ∠B = 180°
∠1 + ∠2 = 180°
Parallel Lines and Transversals
∠1 = ∠5 (corresponding angles)
∠3 = ∠6 (alternate angles)
∠3 + ∠5 = 180° (co-interior)
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