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At a crossing, the obtuse angle exceeds the acute angle by 50°.
Using the linear-pair relationship between an acute and an obtuse angle, find the obtuse angle.

Class 7Adjacent and Vertically Opposite AnglesLines and Angles
  • A105
  • B115
  • C125
  • D230

Step-by-Step Solution

Let acute = , obtuse = . Linear pair: . Obtuse = 65 + 50 = 115°.
Answer: B) 115

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