Question

Find the difference in area between the large circle and the small circle. (image included)

Answer 1

Subtract the area of one circle from the other.

Answer 2

You have a circle of radius 6, and you have a circle of radius 3.
So your answer is
Answer: (Area of circle of radius 6) - (Area of circle of radius 3)
The formula for the area of a circle is pi*r^2 where r is the radius

Answer 3

Example: The area of a circle with radius 8 =\[\pi r^2=\pi (8)^2=\pi (64) =64 \pi\]
Since multiplication is commutative (doesn't matter what order you multiply numbers) I switched the position of pi and 64 in the last step.

Answer 4

Also recall that 8x-4x=4x
That is if you have \[90 \pi - 60 \pi=30 \pi\]

Answer 5

is the answer A=9pi-9/2 ^3

Answer 6

Answer= \[\pi (6)^2 - \pi (3)^2 = 36 \pi - 9 \pi\]

Answer 7

Simplify...36-9=27....so you have....

Answer 8

I could see where you got the 9pi but where did you get 9/2 ^3

Answer 9

is it 27pi?

Answer 10

YES :-)

Answer 11

thankyou >.<

Answer 12

You may want to select the best answer and close the question.