CTET Paper 1 · Mathematics-CTET

In ∆ ABC, sides BC and BA are produced to D and E, respectively. If ∠ ACD = 120° and ∠ CAE = 130°, then what is the measure of ∠ ABC ?

  1. 65°
  2. 70°
  3. 75°
  4. 80°
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