1. The problem asks for the measure of angle 1 (m\angle 1) in a triangle where two other angles are given: 30° and 74°.
2. Recall the Triangle Angle Sum Theorem: The sum of the interior angles of a triangle is always 180°.
3. Using this theorem, we write the equation:
$$m\angle 1 + 30° + 74° = 180°$$
4. Combine the known angles:
$$m\angle 1 + 104° = 180°$$
5. Subtract 104° from both sides to isolate m\angle 1:
$$m\angle 1 = 180° - 104° = 76°$$
6. Therefore, the measure of angle 1 is 76°.
Angle 1 E52Fff
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