1. **State the problem:** We need to find the angle $c$ in a triangle or geometric figure. 2. **Identify the known information:** Since the problem is brief, we assume we have a triangle with angles $a$, $b$, and $c$. 3. **Recall the triangle angle sum rule:** The sum of the interior angles in any triangle is always $180^\circ$. $$a + b + c = 180^\circ$$ 4. **Express the formula to find $c$:** $$c = 180^\circ - a - b$$ 5. **Explanation:** To find angle $c$, subtract the sum of the other two angles $a$ and $b$ from $180^\circ$. 6. **Intermediate step example:** If $a = 50^\circ$ and $b = 60^\circ$, then $$c = 180^\circ - \cancel{50^\circ} - \cancel{60^\circ}$$ 7. **Calculate:** $$c = 180^\circ - 110^\circ = 70^\circ$$ 8. **Final answer:** The angle $c$ is $70^\circ$. If you provide specific values for $a$ and $b$, I can calculate $c$ exactly.