Question

A 30o angle cuts off an arc in a circle with a diameter of 10 in.

the length of the arc to the nearest hundredth is _____ in.

Answer 1

use this formula :
the central angles/360 = length of arc/circumference of circle

Answer 2

how do I set it up

Answer 3

let the length of arc is x, so
30/360 = x/(2pi*d)
30/360 = x/(2*3.14i*10)

solve for x

Answer 4

oppss... mistake in formula circumference of circle, that should be
30/360 = x/(pi*d)
30/360 = x/(3.14*10)

solve for x

Answer 5

you know how do that on a phone scientific calculator aha

Answer 6

u can use the standard only :)

Answer 7

ok

Answer 8

is the answer 2.6166666667

Answer 9

correct, but too many numbers there :P

Answer 10

so just 2.62

Answer 11

ah, agreed :)

Answer 12

thank you

Answer 13

welcome