Question

MATH HELP PLEASE

Answer 1

length of the arc = r * angle in radians
so convert 45 degrees to radians then multiply by 30

Answer 2

Im so lost... :(

Answer 3

1 degree = pi/180 radians
45 degrees = 45pi/180 radians = pi/4 radians

Answer 4

so 45 x 180

Answer 5

or is this divison

Answer 6

length of arc = radius * pi/4
= 30pi/4
= 7.5 pi / 4

Answer 7

have you familiar with radians nnick?

Answer 8

are you ? i meant

Answer 9

No i am afraid not. im attempting to learn this trig crap on a computer >______<

Answer 10

its another way to measure angles

Answer 11

you know how to find the circumference of a circle right? (2[pi]r) well, the total angle of a circle is 360 degrees. So you can cross multiply. Since, after all, they did give you r.

Answer 12

would this be 50 degrees?

Answer 13

yes thats another way to do it - more simple in fact

Answer 14

i guess C is circumference of the circle right?

Answer 15

yeah

Answer 16

so mabc = 45 which is 45/200 of the circumference
there are 360 degrees in full circle
so measure of the angle is (45 * 360 ) / 200 = 81 degrees