Question

What is the circumference of a circle with a radius of 0.8 m?

A.
m

B.
m

C.
m

D.
m

Answer 1

i will give you a medal

Answer 2

if you help me

Answer 3

looks like m is the only choice....

Answer 4

what is the formula for the circumference of a circle?

Answer 5

a.0.64 tt m
b.0.8 tt m
c.1.6 tt m
d 2.56 tt m

Answer 6

what i think is 1.6 tt m

Answer 7

why do you think that?

Answer 8

becuse i multiply 0.8*2

Answer 9

that is not the way to find the circumference.
you can use:
\[C=2\pi r\]
and see what you get...

Answer 10

so its c

Answer 11

are you there

Answer 12

i get 5 ..., are you sure those are the options?

Answer 13

yes

Answer 14

why does they say tt m ?

Answer 15

thats how they look

Answer 16

okay, i know what is happening, that "tt" looks pretty much like the letter pi: \[\pi\]
so the answers are given as a number times pi
so the answer is:
\[1.6\pi\]

Answer 17

thank you

Answer 18

yw!!