1. **State the problem:** We need to find the measure of angle 1, denoted as $m\angle 1$, in a triangle where two angles are given as $30^\circ$ and $119^\circ$.
2. **Recall the triangle angle sum rule:** The sum of the interior angles in any triangle is always $180^\circ$. This means:
$$m\angle 1 + 30^\circ + 119^\circ = 180^\circ$$
3. **Set up the equation:**
$$m\angle 1 = 180^\circ - 30^\circ - 119^\circ$$
4. **Calculate:**
$$m\angle 1 = 180^\circ - 149^\circ = 31^\circ$$
5. **Conclusion:** The measure of angle 1 is $31^\circ$.
Angle 1 Measure Ac672A
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