The image below shows a semicircle with a central point [[$ O $]]. The length of the line segment [[$ AB $]] is [[$ 14.0 $]] cm.


a) What name is used for the line segment [[$ AB $]]?

Answer: The line segment [[$ AB $]] is the circle's .

b) Calculate the perimeter of the semicircle.



Answer: The perimeter of the semicircle is approximately cm.

c) Calculate the area of the semicircle.

Take a picture of your solution and return it to the submission folder.

Answer: The area of the semicircle is approximately cm[[$ ^2 $]].