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MrRa [10]
3 years ago
12

What is an exterior angle of a triangle ABC 4 7 12 1

Mathematics
1 answer:
KonstantinChe [14]3 years ago
5 0

Answer:

An exterior angle of the triangle ABC would be ∠1.

Explanation:

Exterior Angles: (See attached image)

Lets say you had a polygon (such as the triangle ABC) and you were to take two adjacent sides of that polygon. Lets call the side a and side b. If you were to extend side a, make a y-ish shape between side b and the extended side a. The angle between side b and the "new" part of side a would be the exterior angle.

(See attached image for better understanding.)

Using this, we can find all of the exterior angles of the triangle ABC. They would be ∠1, ∠3, ∠6, ∠8, ∠9, ∠11.

If we look at the answer choices, we will see that ∠1 is one of the answer choices, making ∠1 the solution to this question.

I hope you find my answer helpful. :)

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