Which statement is true for all triangles with exterior angle 1 and remote interior angles 2 and 3?

The answer is below

Step-by-step explanation:

The measure of the exterior angle 1 of a triangle is equal to the sum of the corresponding interior angles 2 and 3.

This is evident in the Theorem 3 of a triangle

For example

Given a hypothetical triangle, with the following angle QRS, ∠1, ∠2, and ∠3 are interior angles. And ∠4, ∠5, and ∠6 are the three exterior angles.

We have the following ∠4 = ∠2 + ∠3

∠5 = ∠1 + ∠3

∠6 = ∠1 + ∠2

answer:

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answer

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step-by-step explanation: