Circumference and Area of a Circle
Practice
Circumference of parts of circles - Answers
1. The answer
The arc length of the semicircle is units.
(Note that we could also multiply 4 by to get units.)
2. The answer
The arc length of the partial circle is units.
(Note that we could also multiply by to get units.)
3. The answer
The arc length of the partial circle is units.
(Note that we could also multiply by to get units.)
4. The answer
The arc length of the semicircle is units.
(Note that we could also multiply 6 by to get units.)