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If angle A = 70° in parallelogram ABCD, what is angle B (in degrees)?

Class 9Conditions for a ParallelogramGeometry — Quadrilaterals
  • A110
  • B220
  • C120
  • D100

Step-by-Step Solution

Adjacent angles of a parallelogram are supplementary: angle B = 180 - 70 = 110°.
Answer: A) 110

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