Question

two circles have radii of 10 and 13 what is their ratio of their circumferences?

Answer 1

C = 2pi r

20pi to 26pi

26/20 = 1.3 to 1

Answer 2

the options are
a. 100/169
b. 10/13
c. sqrt130/13

Answer 3

@MattBrotz

Answer 4

b

Answer 5

same thing as 1.3/1

Answer 6

@MattBrotz can you help me with some other stuff?

Answer 7

\[Circumference = 2*\pi*r\]
\[Circumference_{r=10} : Circumference_{r=13}\]
\[2*\pi*10 : 2*\pi*13\]
\[10 : 13\]

Answer 8

@madddiepaige You may want to fill out a new question for other questions.