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Answer :

Batolisisgo

Answer:

The angles are complementary angles

Step-by-step explanation:

Given that a triangle has three sides and three angles

From the above question the unknown side of the triangle has a fixed value ( given ) hence the two angles adjacent to the unknown side will be complementary angles. this is because the sum of the angles of a triangle = 180°

Melanieq2017go

Answer:

Because the given conditions (7 centimeters, 9 centimeters, and 74°) are fixed and the unknown side length is fixed, the angles adjacent to the unknown side must also be fixed.

Step-by-step explanation:

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