Right Angle Sum 305A14

1. **State the problem:** We need to verify that the measures of angles add up to $90$ degrees because it is a right angle. 2. **Important rule:** A right angle measures exactly $90$ degrees. 3. **Explanation:** If you have two or more angles that form a right angle, their measures must sum to $90$ degrees. 4. **Formula:** If angles are $x$ and $y$, then $$x + y = 90$$. 5. **Example:** Suppose one angle is $30$ degrees, then the other angle must be $$90 - 30 = 60$$ degrees. 6. **Conclusion:** The sum of the measures of angles forming a right angle is always $90$ degrees.