Ask your own question, for FREE!
Mathematics 23 Online
OpenStudy (anonymous):

In circle A, the radius is 3 and the m angle CAT = 150°. Find the length of arc CST to the nearest integer. http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-A09/b/assessments/C-CirclesExam/Geometry_7_Exam_110q3.gif

OpenStudy (anonymous):

take 150/360 and multiply by circumference that's pretty much it

OpenStudy (anonymous):

n --- ) (2 r π) 360 * n = CAT angle measurement * = degrees symbol

OpenStudy (anonymous):

how do i find r

OpenStudy (anonymous):

circumference is all the way around the circle circles have 360 degrees for half circle 180 degrees or half the circumference 150/360 is just ratio or part of circumference

OpenStudy (anonymous):

sorry nevermind

OpenStudy (anonymous):

r is in the problem, wut?

OpenStudy (anonymous):

i got 0.0218

OpenStudy (anonymous):

No, C * (150/360) is arc length for CT C * (210/360) is arc length for CST where C is circumference

OpenStudy (anonymous):

oh 7.8539 rounded would be 7.854?

OpenStudy (anonymous):

n --- ( 2r π ) 360 r is you radius

OpenStudy (anonymous):

is the 70.854 right

OpenStudy (anonymous):

Uh, no

OpenStudy (anonymous):

radius |dw:1366699165078:dw|

OpenStudy (anonymous):

dang im so lost , can you please walk me through it. I did the 150/360 * 2*3*pi

OpenStudy (anonymous):

note the word middle center means that in a circle you may have many radii

OpenStudy (anonymous):

Whats that mean

OpenStudy (anonymous):

|dw:1366699490978:dw| not to scale in you problem you have how many radii (lines going to the center)? what is the measurement of the radius

OpenStudy (anonymous):

3

OpenStudy (anonymous):

|dw:1366699643789:dw| not to scale will the measurement of the radius be different from the other radii ? Explain

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

its a bit off your math problem but i want to make sure you know the basics

OpenStudy (anonymous):

all good? circles have infinite radii by the way

OpenStudy (anonymous):

so what equation should i do

OpenStudy (anonymous):

C * (210/360) is arc length for CST

OpenStudy (anonymous):

10.996

OpenStudy (anonymous):

answer asks for nearest integer, so 11

OpenStudy (anonymous):

thank you so much

OpenStudy (anonymous):

welcome

OpenStudy (anonymous):

do you know any of these circle circumference = 2 π 2 area = 2^2π

OpenStudy (anonymous):

cicumference = 2r π

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!