Question

Find the m∠1, if p|| q, and m∠4 = 125 degrees. m∠1 =

Answer 1

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In the given figure, if the lines p and q are parallel then the angles 4 and 1 form the pair of co - interior Angles that sum upto 180°,

so,

• 
  `\angle4 + \angle1 = 180`
• 
  `\angle1 + 125 = 180`
• 
  `\angle1 = 180 - 125`
• 
  `\angle1 = 55 \degree`