Question

how do you find the measure of an arc of a cirlce?

Answer 1

circumference really

Answer 2

radian angle * radius

Answer 3

for the whole thing we get

2pi r for part of it; just replace 2pi with the radian angle

Answer 4

but the radius is not given thats why im confused

Answer 5

cant read your mind lol whats the problem and can you send a pic?

Answer 6

hmm let me try one minute

Answer 7

there its number two

Answer 8

well, the r is gonna be some scaled version of sqrt(2); so id say:

r = t sqrt(2) to cover all the bases; what have you been using to determine a radius with?

Answer 9

lol.... how about this route;

the arc length is equal to the angle degree that it is infront of

Answer 10

since that angle is 90 degrees; the arc length is 90 degrees; or pi/2 radians

Answer 11

we were using similar angles to find the missing lengths but sences there are no #s given im not sure what to do

Answer 12

so then arcLM would also be 90?

Answer 13

its; pi r/2 if it aint gonna give number than thats the best you can do

Answer 14

yes; 90 degrees

Answer 15

awsome thank you!

Answer 16

yw :)