Question

the distance from the center of a circle to any point on its circumference is called the
the longest chord in a circle, passing through the center, is called the
the total distance around a circle is called the
the formula to find the length of an arc is (l = \theta\times)
the area of a sector can be found using the formula (a=\frac{1}{2}\theta\times r^{2}), where (r) is the
the angle subtended by an arc at the center of the circle is known as the angle.
to convert degrees to radians, multiply the angle in degrees by (left(\frac{pi}{}
ight))
a part of the circumference of a circle is called an

Explanation:

1. By definition, the distance from the center of a circle to any point on its circumference is the radius.
2. The longest chord in a circle that passes through the center is the diameter.
3. The total distance around a circle is the circumference.
4. The formula for arc - length is $L=\theta\times r$ (where $\theta$ is in radians).
5. In the sector - area formula $A = \frac{1}{2}\theta\times r^{2}$, $r$ is the radius.
6. The angle subtended by an arc at the center of the circle is the central angle.
7. To convert degrees to radians, multiply by $\frac{\pi}{180}$.
8. A part of the circumference of a circle is an arc.

Answer:

1. radius
2. diameter
3. circumference
4. $r$
5. radius
6. central
7. 180
8. arc