Answer:
28.25 square units
Step-by-step explanation:
A circumference of the circle is
![C=2\pi r,](https://tex.z-dn.net/?f=C%3D2%5Cpi%20r%2C)
where r is the radius of the circle.
So,
![18.84=2\pi r\\ \\r=\dfrac{18.84}{2\pi}=\dfrac{9.42}{\pi}\ cm](https://tex.z-dn.net/?f=18.84%3D2%5Cpi%20r%5C%5C%20%5C%5Cr%3D%5Cdfrac%7B18.84%7D%7B2%5Cpi%7D%3D%5Cdfrac%7B9.42%7D%7B%5Cpi%7D%5C%20cm)
The area of the circle is
![A=\pi r^2](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%5E2)
Substitute the value of the radius:
Answer: i dont know how exact you want it but the answer is 31.4159265359
Step-by-step explanation: you have to double the raduis and multiple buy pie.
Answer:
c
Step-by-step explanation:
Answer:
The life expectancy of a circulating coin is 25 years. The life expectancy of a circulating dollar bill is only 1/20 as long.
Step-by-step explanation: