Question

Which is the closest approximation to the area of the circle?

Use 3.14 or 22/7 to approximate π.



A.
57 mm²

B.
113 mm²

C.
324 mm²

D.
1017 mm²

Answer 1

http://static.k12.com/calms_media/media/1415500_1416000/1415928/1/6079b35e1f1de9eb70bd5100b38de4d1aa0c4467/67548_FGA_U7_L8_V1_P.jpg

Answer 2

Hi!!!

Answer 3

Okay so this is easy if.... you have the formula.

Answer 4

the formula is 3.14x2xr

Answer 5

@DenishaH Thanks!!!

Answer 6

so 3.14*2=6.28

Answer 7

like that?

Answer 8

Not exactaly.

Answer 9

so 3.14x2x18mm=113.04 so the final answer is B

Answer 10

oh

Answer 11

were did you get the 18 from tho?

Answer 12

@DenishaH You are violating OS CoC that You agreed to. Direct answers are against openstudy CoC

Answer 13

iYuko sorry I just joined you dont't have to be so rude

Answer 14

\[C=\pi*D\]I prefer this formula to use soo the first step is to find the diameter Which is 18* because the radius is half of the diameter.

Answer 15

@iYuko is not being rude @DenishaH people type it in there own voice people take it in a different voice and may think it is rude

Answer 16

oh that's were the 18 is from

Answer 17

So what is 18*2?

Answer 18

18*2 is 36

Answer 19

\[C=3.14*36\]

Answer 20

Now what is the answer?

Answer 21

Their are a few different equations you can use I just prefer to use this one. :)

Answer 22

Did you find the answer?

Answer 23

113.04...sorry I took long my mom tagged me in a photo on facebook

Answer 24

Yup its \[113.04mm ^{2}\]

Answer 25

so B...thx for the help

Answer 26

Some times questions like these ask for an exact answer. But this one was asking you to use 3.14 and pi goes on 4 ever so this answer is not exact but its the correct one...B

Answer 27

what grade are you in...my homeschool site is teaching us math that we are supposed to learn in 10th grade...im in the 6th

Answer 28

I'm in 8th I did stuff like this a long time ago. xD

Answer 29

Medal and fan plz. xD

Answer 30

This isn't 10th Grade math, trust me. :P @rainbow_rocks03