An exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side.
An exterior angle of a triangle is equal to the sum of the opposite interior angles. If the equivalent angle is taken at each vertex, the exterior angles always add to 360 degrees.
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Similar Questions
Q1
What is the sum of all the exterior angles of a triangle?
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Q2
The sum of all the interior angles of a triangle is equal to half of sum of all the exterior angles of the same triangle
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Q3
The sum of all the exterior angles of a triangle is ___ (in degrees).
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Q4
The sum of all angles of a triangle is 180o, hence all angles of a triangle are always supplementary angles.
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Q5
Prove that the sum of the angles of a triangle is 180o and using this theorem prove that exterior angle is equal to the sum of interior opposite angle.