In a parallelogram, opposite angles are congruent, and adjacent angles are supplementary (their sum is 180°).

Given that one angle measures 10°, we can determine the other angles as follows:

1. Opposite angle: Since opposite angles are equal in a parallelogram, the opposite angle to the 10° angle will also measure 10°.

2. Adjacent angles: Since adjacent angles are supplementary, the sum of the adjacent angles must be 180°. Therefore, if one angle is 10°, the adjacent angle will be: $180° - 10° = 170°$

   So, the adjacent angle to the 10° angle will be 170°.

3. Opposite to the 170° angle: As before, the opposite angle will also measure 170°.

Thus, the four angles in the parallelogram are:

• Two angles measuring 10°.
• Two angles measuring 170°.

Would you like further details or examples on parallelograms? Let me know if you have any questions!

---

Here are some related questions:

1. How do you prove that opposite angles in a parallelogram are congruent?
2. What are the properties of a rectangle and how does it differ from a parallelogram?
3. Can a parallelogram have all its angles equal?
4. How do you find the area of a parallelogram given its base and height?
5. What happens if one angle of a parallelogram is 90°?

Tip: Always remember that adjacent angles in a parallelogram add up to 180°!