Question

HOW TO FIND LENGTH OF AN ARC
Find the length of arc ACB.

Answer 1

Length of arc \(L = r \theta\)
r= radius , \(\theta \) is the inscribed angle in RADIANS
so, first convert that 20 degrees into radians and use this formula :)

Answer 2

So the answer would be 200?

Answer 3

Since the radius is 10 and the angle is 20

Answer 4

no .no....20 is in degrees, convert it in radians....

Answer 5

you know how to convert to radians from degrees?

Answer 6

No. please show me?

Answer 7

sure,
\(\large x^o=(x \times\pi/180)^r\)
just multiply by pi/180
20*pi/180 =... ?

Answer 8

0.34906585039886591538473815369772

Answer 9

how about we give the answer in terms of pi ?
20*pi/180 = pi/9
got it ?
or if you don't want the answer in terms of pi, use that 0.349 and multiply it by radius =10 to get the length of arc....

Answer 10

I'm sorry I still don't get it.

Answer 11

ohh...which part ?
20 degrees = (20*pi/180) radians
L = 10 * (20*pi/180) = .... ?

Answer 12

Is that the arc formula?

Answer 13

length of arc formula
L = inscribed angle (in radians)* radius

Answer 14

Its not on the answer choices

Answer 15

list the answer choices...

Answer 16

a) Arc ACB = 49.21 ft
b) Arc ACB = 33.97 ft
c) Arc ACB = 61.18 ft
d) Arc ACB = 59.31 ft

Answer 17

ohhh...so u need arc ACB....then your inscribed angle will be 360-20 = 340 and not 20

L = 10 * (340*pi/180) = .... ?

Answer 18

59.31

Answer 19

yes :)

Answer 20

THank you

Answer 21

@hartnn another question

Answer 22

your welcome ^_^
thanks for the testimony :)
sure! do ask.....

Answer 23

find m<LKJ

Answer 24

okk...total arc (one full circle) =360
so,
216+52 + LJ =360
first find LJ from here...

Answer 25

lj = 92?

Answer 26

yes. :)

Answer 27

a) 108 degrees
b) 26 degrees
c) 46 degrees
d) none of these

Answer 28

Is it D?

Answer 29

now use this :

so u just need to multiply 92 by 1/2 ....