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The measure of one of the exterior angles of a triangle...

This question belongs to Arithmetic Ability Geometry
Geometry
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The measure of one of the exterior angles of a triangle is twice one of the interior opposite angles and the measure of the other interior opposite angles is 60°. The triangle is a/an:

Answer & Solution
Correct Answer: Option D
Geometry mcq question image
2x = x + 60°
x = 60°
This triangle is a equilateral triangle.
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