Question

Find the exact area of the circle with the given radius.

r = 11.64 m



A.


11.64π m²


B.


23.28π m²


C.


33.8724π m²


D.


135.4896π m²

Answer 1

a=π•r^2
this is the formula, I'm not sure why it doesn't work.

Answer 2

I got 425.653132

Answer 3

try 11.64 x 11.64

Answer 4

oh, never mind haha, it's 135.4896πm^2

Answer 5

haha

Answer 6

Find the exact area of the circle with the given diameter.



d = 12.6 cm



A.




39.69 cm2


B.




158.76 cm2


C.




158.76π cm2


D.




39.69π cm2

Answer 7

i got c 158.76

Answer 8

d/2=6.3
6.3^2•π=39.69πcm^2

Answer 9

http://static.k12.com/calms_media/media/1415500_1416000/1415930/1/25b4cfb6cdbf711ba8838fc584a350543ba6e7f8/67548_FGA_U7_L8_V3_P.jpg

Answer 10

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

Use 3.14 or to approximate π.





A.


531 ft²


B.


169 ft²


C.


82 ft²


D.


41 ft²

Answer 11

13^2•π=530.929≈531

Answer 12

What is the exact area of a circular courtyard with a radius of 22 ft?


A.


1936π ft²


B.


484π ft²


C.


44π ft²


D.


22π ft²

Answer 13

b?

Answer 14

yes it's B:)

Answer 15

yay

Answer 16

Get Lucky - Daft Punk (OFFICIAL RADIO EDIT)

Answer 17

nice song

Answer 18

oh have you heard of havent met you yet?

Answer 19

Which expression can be used to find the area of a circle with a diameter of 80 cm?


A.


π · 402


B.


π · 160


C.


π · 80


D.


π · 40

Answer 20

thats my favorite songs:)

Answer 21

really

Answer 22

Michael Bublé - "Haven't Met You Yet" [Official Music Video]

Answer 23

thats my favorite song it's funny when they were walking on the racks

Answer 24

80/2=40=r
40^2•π=a
is A π•40^2?

Answer 25

im a fan of michael buble

Answer 26

same here you have a skype?

Answer 27

Omgggg i got a 100%%%%%%%

Answer 28

yes :)

Answer 29

yay!!!

Answer 30

ima add you on skype

Answer 31

haha ok