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No scams. Show your work. write answer as a percent and round the nearest whole number if needed.​

No scams. Show your work. write answer as a percent and round the nearest whole number-example-1
User Bryce Drew
by
7.6k points

1 Answer

2 votes

Answer:

Explanation:

we will find the area of the inner circle and then the area of the outer circle and see what the ratio is between those 2

area of a circle =
\pi
r^(2) (where r is the radius, NOT the diameter, easy to confuse)

the radius of the inner circle is 2.5. which is half of the diameter of 5

inner circle =
\pi*(2.5)^2

inner circle = 19.6349...

outer circle =
\pi*(10^2)

outer circle = 314.1592...

the ratio is 19.6349... / 314.1592... = 0.0625

0.0625 = 6.25%

= 6% ( rounded to nearest whole number )

User Houman
by
8.0k points

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