I need help, please
Can anyone help me with this problem.

Answer:
I'm not a math whiz, but if I am not mistaken I believe you find the surface area of a full circle, take that answer and divide it by two since it is a half circle. Don't forget to show your work and pi is 3.14.
Hope I helped,
Adrian Velez
Step-by-step explanation:
Answer:
25.12units
Step-by-step explanation:
area =1/2multiplied by 3.14 multiplied by the 2 radius
1st. 1/2 multiplied by 3.14multiplied by 4multiplied by 4=25.12