Question

Please help!!!

What is the circumference of the given circle in terms of pi?
a. 30(pi symbol)in.
b.45(pi symbol)in.
c.15(pi symbol)in.
d.225(pi symbol)in.

the line from the middle of the circle to the edge is 15 in.

Answer 1

What is the radius of the given circle?
What is the formula for the circumference of a circle with radius r?
Please "do the math." Choose the appropriate answer from the four choices given.

Answer 2

this line is radius r
and\[ circumference=2\pi r\]

Answer 3

a?

Answer 4

correct.

Answer 5

thanks!

Answer 6

could you help with one more?

Answer 7

sure

Answer 8

What is the area of the given circle in terms of pi?

Answer 9

6.6m*

Answer 10

@surjithayer

Answer 11

6.6 m is diameter?

Answer 12

yes

Answer 13

what is radius then?

Answer 14

do you know?

Answer 15

3.3?

Answer 16

correct
what is the formula for area of a circle?

Answer 17

a=pi r2

Answer 18

correct,plug the value of r and find the area.

Answer 19

10.89?

Answer 20

\[A=\pi \left( 3.3 \right)^2=10.89 \pi m^2\]

Answer 21

thats what i got thanks!

Answer 22

good that you got it.
if you want the answer free of pi ,then put the value of pi=3.14 or 22/7