Question

How would you find the fraction of a circle that an arc covers?

A. Divide the circumference by 360.
B. Divide the measure of the arc by 180.
C. Divide the diameter by 360
D. Divide the measure of the arc by 360.

Answer 1

well we know it's not?

Answer 2

I know it is not B

Answer 3

http://www.answers.com/Q/How_would_your_find_the_fraction_of_a_circle_that_an_arc_covers

Answer 4

Take a look at it.

Answer 5

I just did.

Answer 6

Do you know now?

Answer 7

Or more clarification?

Answer 8

A I think

Answer 9

What do you think mathmale? I'd say A also,

http://www.nelson.com/school/elementary/mathK8/quebec/0176237879/documents/NM8SB_5A.pdf


Since I don't see an answer saying anything about the 'central angle'.

Answer 10

Please, could we focus on understanding instead of just answers? answers.com will not be available to you during exams.

If an arc length of less than one whole circumference is given to you, write the RATIO

\[\frac{ given~arc~length }{ 2\pi r }=\frac{ r \theta }{ 2 \pi r }.\]

Answer 11

hmmm

Answer 12

Notice that you can reduce the last result by cancelling out the ' r '
This fraction is the answer to your question, so long as you express your angle (theta) in radians (not in degrees).

Answer 13

ok so it is A

Answer 14

that seems correct to me

Answer 15

Can you convince me that "A" is the same thing as I've suggested (using that formula)?

Answer 16

I'd say so.

The others don't touch on what we went over. Basically the only thing that makes sense. However. do you know WHY it is A?

Answer 17

Suppose that I tell you that the length of the arc is 5. What fraction of the whole circular area is represented by that arc length and the corresponding, pizza-slice-shaped area?

Answer 18

Hint: It's more than half the circle but less than the full circle.

Answer 19

Write your answer as a proper fraction.

Answer 20

i dont want to give a direct answer

Answer 21

cuz that would be agenst contract

Answer 22

Any explanation you'd like to provide, as an alternative to others' answer choices, would be welcome. You don't need to give the answer, but you could certainly explain how you or FFASinger could go about finding it.

Answer 23

well i could be wrong but everyone makes misstakes

Answer 24

but u said it would be half so basiced on that formula i got 180

Answer 25

one way to figure it out. look at a simple case