Question: Complete each postulate.
If two select choice intersect, then their intersection is a point.
Through three noncollinear points there is exactly one select choice.
1. **State the problem:**
We need to complete two geometry postulates involving intersections and points.
2. **First postulate:**
"If two lines intersect, then their intersection is a point."
3. **Explanation:**
This means that when two lines cross each other, they share exactly one point where they meet.
4. **Second postulate:**
"Through three noncollinear points there is exactly one plane."
5. **Explanation:**
Three points that are not on the same line (noncollinear) define a unique plane that contains all three points.
6. **Summary:**
- Two lines intersect in exactly one point.
- Three noncollinear points determine exactly one plane.