1. The area of a circle made by a chord and an arc between the two endpoints of the chord is a __________.
2. A part of the circumference of a circle is a _________.
3. The part of a circle bounded by two radii and the connecting arc of a circle is a _____________.
4. A line that intersects a circle in two points is a ______________.
5. Write the equation of a circle given the center and radius.
center: (4, 8)
radius: 3
6. Write the equation of a circle given the center and radius.
center: (-1, 0)
radius: square root of 5
7. Write the equation of a circle, given its diameter has endpoints of (2, ‒ 5) and (8, 3) .
8. Write the equation of a circle, given its center is at (1, 2) and it contains the point (0, 6) .