Question

Answer fast please!

Which statement is true regarding the angles in the figure below?

A) Angle D is an exterior angle because it shares a side with the triangle.
B) Angle D is an exterior angle because it is not inside the triangle.
C) Angle D is an exterior angle because it is formed by one side of the triangle and by extending another side of the triangle.
D) Angle D is not an exterior angle.

Answer 1

answer is c is a exterior angel because
it is formed

Answer 2

Option D) Angle D is not an exterior angle.

Explanation:

An exterior angle of a triangle is formed between the extended line DF and line DE.

This means Exterior angle of a triangle is supplementary to the interior angle formed on the same line.

So, exterior angle D + ∠ EDF should be equal to 180° [ By definition ]

Therefore, angle D shown in the diagram is not the exterior angle.

Option D is the answer.