1. Let's clarify how to find angles in a triangle or any geometric figure. 2. Typically, angles are found using rules like the Triangle Sum Theorem, which states that the sum of angles in a triangle is always $180^\circ$. 3. If you know two angles, you can find the third by subtracting their sum from $180^\circ$: $$\text{Third angle} = 180^\circ - (\text{Angle 1} + \text{Angle 2})$$ 4. Sometimes, angles are found using trigonometric ratios (sine, cosine, tangent) if side lengths are known. 5. For example, if you know two sides of a right triangle, you can find an angle $\theta$ using: $$\theta = \arctan\left(\frac{\text{opposite side}}{\text{adjacent side}}\right)$$ 6. If you provide the specific problem or figure, I can show exactly how those angles were calculated step-by-step.