Question

please help I think is A
http://imgur.com/dK6J61p
A. 4.8 m
B. 7 m
C. 9.8 m
D. 11.2 m

Answer 1

Can you find the circumference of the circle?

Answer 2

thanks so its B got it

Answer 3

Correct.

Answer 4

whait i got another question just tell me if I am right

Answer 5

ok

Answer 6

http://imgur.com/7SDa6wH

Answer 7

is this right?

Answer 8

Correct.

Answer 9

last one please

Answer 10

ok

Answer 11

http://imgur.com/AnNwVKt

Answer 12

its wrong :(

Answer 13

I don't get 5.5

Answer 14

can you explain it really quick?

Answer 15

Find the circumference first.

Answer 16

This is like the first problem we did above.

Then since the arc corresponds to 39 deg and a full circle is 360 deg, multiply the circumference by 39/360.

Answer 17

ok

Answer 18

Did you get an answer?

Answer 19

yes is c?

Answer 20

I didn't get that.

\(s = \dfrac{n}{360^o} 2 \pi r\)

s = sector length
n = sector measure in degrees
r = radius of circle

Answer 21

\(s = \dfrac{39^o}{360^o} 2 \pi (4.9 ~m)\)

Answer 22

B

Answer 23

Yes, that's what I got.

Answer 24

thanks

Answer 25

You're welcome.