The third angle measures 30° and two sides have the same length.
What is a triangle?
A triangle is a polygon with three sides and three angles. The angles in a triangle sum up to 180°.
Types of triangles are scalene, isosceles, equilateral and right angled triangle.
Let x represent the third angle of a triangle with angle measures of 30° and 120°. Hence:
x + 120 + 30 = 180° (sum of angles in a triangle)
x = 30°
Since two angles are the same, hence two sides have the same length.
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