Question

Find the measures of the interior angles of the triangle.

Answer 1

Answer:Sum of Exterior angle of any polygon =360°,

then

120°+150°+3rd angle =360°,

270°+3rd angle =360°,

then

3rd angle =360° - 270°,

3rd angle =90,

therefore

1st interior angle =180°-120°=60°,

2nd interior angle=180°-150°=30,

3rd interior angle =180°-90°=90°