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\[A = \pi r^2\]

ummmmm

=π·42≈50.26548

I don't get it.......

oh the answer is in pi so 42 pi is your answer

what don't you get?

oh

But 42 is not in the answers...

or 16 pi sry

Part A = pi r^2 = pi 4^2

as 4 is the radius

idk why I wrote 42 xD

Part B
the radius increases by 2
so area = pi * 6^2

@Chumpian How did you get that?

Part A

\[A = \pi r^2\] so 4 is the radius (r) and what's 4 squared?

16

yep and they want the answer in terms of pi so 16pi is your answer

Now i need part B

So again you use the equation \[A = \pi r^2\]

ok

They said they added two inches to the frame

so the radius is now 6

So what do you do next?

area = pi r^2 where r = radius
r is now 6
so its pi * 6^2 = 36 pi

Well I was gonna let her do that but thx xD

oh sorry

Ok sry what is going on?

ok so the radius for part B is 6

ok

We are doing the same thing as we did in part A

ok

so what do we do with the radius that equals 6

idrk

\[A = \pi r^2\]

Ok but that is A

but we are doing the same thing as Part A but just with a larger radius

Ok

So when we plug in the 6 \[A = \pi 6^2\]

What do you do with the 6?

multiply is by itself
so 12

that would be 6 x 2 = 12 but squaring a number would be 6 x 6 = 36

Oh yea sorry

so then 36?

yep and they want it in terms of pi So your answer is?

36π

yep :)