Question

Find the circumference and area of a circle with a diameter of 22 inches. Leave your answers in terms of pi.
Select one:
a. C = 11π; A = 44π
b. C = 22π; A = 44π
c. C = 11π; A = 121π
d. C = 22π; A = 121π

Answer 1

@Nurali

Answer 2

@kc_kennylau

Answer 3

\[d=2r\]\[C=2\pi r\]\[A=\pi r^2\]

Answer 4

1. Find the radius
2. Use \(C=2\pi r\) to find the circumference
3. Use \(A=\pi r^2\) to find the area
4. Wait for me till I finish shower (other ppl will guide you)

Answer 5

cya :)

Answer 6

what would the radius be

Answer 7

d=2r

Answer 8

does anyone know what the radius would be

Answer 9

use it

Answer 10

r=11 inches

Answer 11

oh thnx

Answer 12

ok wait ill brb real quick

Answer 13

ok im back

Answer 14

C=69.08 inches
A=37.94inches ^2

Answer 15

ok that's wat I got

Answer 16

ok now what do we do

Answer 17

i means
that
r=11 inches
since,C=2pir
C=22 pi
since, A=pi r^2

A=121 pi
this is the correct answer
i means , D is the correct answer

Answer 18

@prowrestler my method help u too much for understand...

Answer 19

diameter of circle= 22inches therefore radius = 11 inches (d=2r)
now
circumference of circle= 2pi R
=2*pi*11
that is 22pi
and
area = pi R^2
= pi *11* 11
= 121 pi

Answer 20

So the answer is D?

Answer 21

yes

Answer 22

thnx can you help on another please

Answer 23

yeah sure

Answer 24

sure..