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3 years ago

Answer fast please!

Mathematics

2 answers:

vampirchik [111]3 years ago

7 0

Answer:

Option D) Angle D is not an exterior angle.

Step-by-step 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.

Amiraneli [1.4K]3 years ago

3 0

Answer is c is a exterior angel because
it is formed

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