Answer:
hi
Step-by-step explanation: first you type h then you type i then it makes hi
Answer:175.84 ft
Step-by-step explanation: the equation would be diameter times pi
Answer:
12.5 pi or 39.26990
Step-by-step explanation:
First we can find the radius, which is half the diameter, 5 feet. To find the area of a semi-circle we would find the area of the circle and then divide by 2:

We can substitute what we have:

This gives us:
12.5 pi or 39.26990(Not sure what format you need it in)