Geometryhard · Past Paper
The exterior angle of a triangle is 120 and the ratio of the interior opposite angles is 2:1. Find the larger interior opposite angle.
A40 degrees
B60 degrees
C80 degrees
D100 degrees
✓ Correct Answer: C — 80 degrees
2x + x = 120; 3x = 120; x = 40. Larger angle = 2x = 80.
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