I Need Help I Will Give Fan And Medals!

- horsegal244

I Need Help I Will Give Fan And Medals!

- Stacey Warren - Expert brainly.com

Hey! We 've verified this expert answer for you, click below to unlock the details :)

- chestercat

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

- horsegal244

A circular picture is 8 inches in diameter.
Part A
What is the area of the picture in square inches?
A. 4π square inches
B. 8π square inches
C. 16π square inches
D. 32π square inches
Part B
A frame that is 2 inches wide surrounds the picture. What is the total area of the picture and the frame in square inches?
A. 4π square inches
B. 12π square inches
C. 36π square inches
D. 40π square inches

- horsegal244

@hybrik

- anonymous

\[A = \pi r^2\]

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

- horsegal244

ummmmm

- anonymous

=π·42≈50.26548

- horsegal244

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

- anonymous

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

- anonymous

what don't you get?

- horsegal244

oh

- horsegal244

But 42 is not in the answers...

- anonymous

or 16 pi sry

- welshfella

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

- welshfella

as 4 is the radius

- anonymous

idk why I wrote 42 xD

- welshfella

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

- horsegal244

@Chumpian How did you get that?

- horsegal244

Part A

- anonymous

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

- horsegal244

16

- anonymous

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

- horsegal244

Now i need part B

- anonymous

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

- horsegal244

ok

- anonymous

They said they added two inches to the frame

- anonymous

so the radius is now 6

- anonymous

So what do you do next?

- welshfella

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

- anonymous

Well I was gonna let her do that but thx xD

- welshfella

oh sorry

- horsegal244

Ok sry what is going on?

- horsegal244

@Chumpian

- anonymous

ok so the radius for part B is 6

- horsegal244

ok

- anonymous

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

- horsegal244

ok

- anonymous

so what do we do with the radius that equals 6

- horsegal244

idrk

- anonymous

\[A = \pi r^2\]

- horsegal244

Ok but that is A

- anonymous

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

- horsegal244

Ok

- anonymous

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

- anonymous

What do you do with the 6?

- horsegal244

multiply is by itself
so 12

- anonymous

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

- horsegal244

Oh yea sorry

- horsegal244

so then 36?

- anonymous

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

- horsegal244

36π

- anonymous

yep :)

Looking for something else?

Not the answer you are looking for? Search for more explanations.