Mathematics · Lines and Angles
The two interior opposite angles corresponding to an exterior angle of 140° of a triangle are 60° and x. Then, the value of 3x + 20° is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1260°✓
- 2240°
- 3230°
- 4200°
Correct answer
260°
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