Circumference and Area of a Circle

1. 

Find the area of the shape.

Either enter an exact answer in terms of \(\pi\) or use \(3.14\) for \(\pi\) and enter your answer as a decimal.

________ units \(^{2}\)

2. 

Find the area of the semicircle.

Either enter an exact answer in terms of \(\pi\) or use \(3.14\) for \(\pi\) and enter your answer as a decimal.

________ units \(^{2}\)

3. 

Find the area of the semicircle.
Either enter an exact answer in terms of \(\pi\) or use \(3.14\) for \(\pi\) and enter your answer as a decimal.

________ units \(^{2}\)

4. 

Find the area of the shape.
Either enter an exact answer in terms of \(\pi\) or use \(3.14\) for \(\pi\) and enter your answer as a decimal.

________ units \(^{2}\)