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The ratio of two adjacent angles of a parallelogram is 2 : 3.
Priya needs the measure of the smaller angle for a design.
Find the smaller angle (in degrees).

Class 9Properties of a ParallelogramGeometry — Quadrilaterals
  • A79
  • B65
  • C144
  • D72

Step-by-Step Solution

Adjacent angles add to 180. Let them be 2k and 3k: 5k = 180, k = 36. Smaller = 2k = 72°.
Answer: D) 72

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