Respuesta :
The correct answer is:
An exterior angle is supplementary to the adjacent interior angle.
Explanation:
An exterior angle of a triangle and its adjacent interior angle form a linear pair. This means they form a straight line, and a straight line has a measure of 180°. Since they combine for a total of 180°, this means they are supplementary.
A triangle has three sides and three angles
The true statement is: (a) an exterior angle is supplementary to the adjacent interior angle.
The angles in a triangle add up to 180 degrees.
Similarly, adjacent angles add up to 180 degrees.
The above statements means that:
An exterior angle is supplementary to the adjacent interior angle, and they both add up to 180 degrees
Hence, the true statement regarding the interior and exterior angles of a triangle is (a)
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