Question

Help please!

Answer 1

Do you know the formula for arc length?

Answer 2

No

Answer 3

ok, what do you know about the measures of arcs then? What have you learned in class so far?

Answer 4

This is like a preview test, so nothing, I just really want to get ahead since I'm pretty bad at math and takes me longer to understand it.

Answer 5

ah ok, well, 1. I commend your efforts. 2. Please please please never say you are bad at math. You will become bad if you do.
3. If you have not learned the material yet, I recommend watching the khanacademy.org videos before you atttempt the pretest

Answer 6

or, doing something similar. That way you are not just going in without understanding anything, it causes less frustration

Answer 7

Yeah, I'm getting better at it. I've been practicing a lot... I shouldn't say pre test just like a pre-packet of questions I guess.

Answer 8

I recommend starting here https://www.khanacademy.org/math/geometry/cc-geometry-circles/circles/v/language-and-notation-of-the-circle

Answer 9

Math is all about practice

Answer 10

Thanks

Answer 11

np, feel free to tag me after you watch the videos if you have any questions :)

Answer 12

@FibonacciChick666 So I'm reading and stuff and the formula for degrees and it's 2*pi*r (c/360) right?

Answer 13

yep, because you are essentially multiplying by the percentage of the circle you want the length of

Answer 14

c=central angle

Answer 15

but I don't have my central angle?

Answer 16

Or wait that's the 128 maybe?

Answer 17

well, you have to use that ac or whatevere is the diameter, so what is the measure of angle AC? it's a straight line right? so you can find the measure of the supplementary angle given the information at hand.

Answer 18

Okay

Answer 19

it's 180 the diameter

Answer 20

well, the measure of the angle created by the diameter is 180 defgrees