Which part is shaded? :)
the larger circle only
Inside the big circle, but outside the small one? ah ok
That's not too bad :) That's simply `the area of the big circle` - `area of the small circle`
You'll have to recall your area formula: \(\large\rm A=\pi r^2\) What is the area of the larger circle? Are you able to figure that out based on the information given?
yes! so it would be two equations, one pi (10)^2 and then the other pi(10)^2?
Ooo careful! :) They didn't actually tell us the `radius` of the smaller circle.
oh yeah ok so what do i do?
You have to remember the relationship bebtween `diameter` and `radius`.
radius is half diameter
Ok good :o Half of 10 is 5. So that gives us the `r` that we want to use for the smaller circle.
You had your first equation correct, which corresponded to the area of the larger circle \(\large\rm \pi(10)^2\)
So the smaller one, which we've corrected, should be \(\large\rm \pi(5)^2\) ya? :o
Square those numbers, then subtract the smaller one from the larger one
i forget do i use pi in the equation orr just leave it until the end
ok nevermind for my final answer i got 75pi
yay good job \c:/