Answer:
7.71
Step-by-step explanation:
First off, the diameter is 3 and we know that the radius is always half of that (1.5). Since this is a semi-circle, we aren't going to multiply by 2 but instead we are going to add the diameter afterwards. So, we are going to do 1.5x3.14 which equals to 4.71. This is the part where you add the diameter which is 3. So, after you add it, you should then get 7.71!
