Answer: 97.7 in
Step-by-step explanation: The perimeter is another name for circumference. Since we know that the formula for circumference is 2(pi)r, but we only want half of that.
Note that 2r is another way of writing the diameter (d).
In this case, we can use the formula d(pi)/2 + d (we’re adding d because d(pi)/2 will only give us the perimeter of the arch.
38(pi)/2 = 59.66
59.66 + 38 = 97.66
Rounded, that would be 97.7 in
Is there supposed to be a picture??
But to answer ur question when ur referring to x your referring to 1 hope this helps
Answer:
8r+72
Step-by-step explanation:
He will spend 80% of his money
Do you have a picture for this problem? There are multiple different ways to solve this problem but I'll need a picture to help you.